com.aspose.imaging.fileformats.webp

Class WebPImage

java.lang.Object

com.aspose.imaging.DisposableObject

com.aspose.imaging.DataStreamSupporter

com.aspose.imaging.Image

com.aspose.imaging.RasterImage

com.aspose.imaging.RasterCachedImage

com.aspose.imaging.RasterCachedMultipageImage

com.aspose.imaging.fileformats.webp.WebPImage

All Implemented Interfaces:

IMultipageImage, IMultipageImageExt, IObjectWithBounds, IRasterImageArgb32PixelLoader, IRasterImageRawDataLoader, com.aspose.internal.IPixelsSaver, com.aspose.internal.progressmanagement.IProgressEventHandler, com.aspose.internal.progressmanagement.IProgressInformer, com.aspose.ms.System.IDisposable, Closeable, AutoCloseable

public final class WebPImage
extends RasterCachedMultipageImage
implements IMultipageImageExt

A webp image.

Code example:

This example shows how to load a WebP image from a file and save it to PNG.

String dir = "c:\\temp\\";

// Load a WebP image from a file.
com.aspose.imaging.fileformats.webp.WebPImage webPImage = new com.aspose.imaging.fileformats.webp.WebPImage(dir + "test.webp");
try {
    // Save to PNG
    // Note that only the active frame will be stored to PNG, since PNG is not a multi-page format.
    webPImage.save(dir + "test.output.png", new com.aspose.imaging.imageoptions.PngOptions());
} finally {
    webPImage.dispose();
}

Constructor Summary

Constructors

Constructor and Description
WebPImage(InputStream stream) Initializes a new instance of the WebPImage class from stream.
WebPImage(InputStream stream, LoadOptions loadOptions) Initializes a new instance of the WebPImage class from stream.
WebPImage(int width, int height, WebPOptions options) Initializes a new instance of the WebPImage class with empty image.
WebPImage(int width, int height, WebPOptions options, LoadOptions loadOptions) Initializes a new instance of the WebPImage class with empty image.
WebPImage(RasterImage rasterImage) Initializes a new instance of the WebPImage class from rasterImage.
WebPImage(RasterImage rasterImage, LoadOptions loadOptions) Initializes a new instance of the WebPImage class from rasterImage.
WebPImage(String path) Initializes a new instance of the WebPImage class from file.
WebPImage(String path, LoadOptions loadOptions) Initializes a new instance of the WebPImage class from file.

Method Summary

Modifier and Type	Method and Description
void	addBlock(IFrame block) Adds a new Webp block.
void	addPage(RasterImage page) Adds page to the image.
void	adjustBrightness(int brightness) Adjust of a brightness for image.
void	adjustContrast(float contrast) Image contrasting
void	adjustGamma(float gamma) Gamma-correction of an image.
void	adjustGamma(float gammaRed, float gammaGreen, float gammaBlue) Gamma-correction of an image.
void	binarizeBradley(double brightnessDifference, int windowSize) Binarization of an image using Bradley's adaptive thresholding algorithm using the integral image thresholding
void	binarizeFixed(byte threshold) Binarization of an image with predefined threshold
void	binarizeOtsu() Binarization of an image with Otsu thresholding
void	clearBlocks() Clears all the Webp blocks.
void	crop(int leftShift, int rightShift, int topShift, int bottomShift) Crop image with shifts.
void	crop(Rectangle rectangle) Cropping the image.
void	dither(int ditheringMethod, int bitsCount, IColorPalette customPalette) Performs dithering on the current image.
void	filter(Rectangle rectangle, FilterOptionsBase options) Filters the specified rectangle.
Image	getDefaultPage() Deprecated. Please use getPages()[index]
long	getFileFormat() Gets a value of file format
WebPOptions	getOptions() Gets the options.
int	getPageCount() Gets the page count.
PageExportingAction	getPageExportingAction() Gets the page exporting action.
Image[]	getPages()
void	grayscale() Transformation of an image to its grayscale representation
boolean	hasAlpha() Gets the Has alpha channel.
void	insertBlock(int index, IFrame block) Adds a new Webp block.
void	removeBlock(IFrame block) Removes the Webp block.
void	resize(int newWidth, int newHeight, ImageResizeSettings settings) Resizes the image.
void	resize(int newWidth, int newHeight, int resizeType) Resizes the image.
void	resizeHeightProportionally(int newHeight, int resizeType) Resizes the width proportionally.
void	resizeWidthProportionally(int newWidth, int resizeType) Resizes the width proportionally.
void	rotate(float angle, boolean resizeProportionally, Color backgroundColor) !:RasterCachedMultipageImage.Rotate image around the center.
void	rotateFlip(int rotateFlipType) Rotates, flips, or rotates and flips the Active frame only.
void	setPageExportingAction(PageExportingAction value) Sets the page exporting action.

Methods inherited from class com.aspose.imaging.RasterCachedMultipageImage

binarizeBradley, cacheData, getBackgroundColor, getBitsPerPixel, getHeight, getImageOpacity, getWidth, getXmpData, hasTransparentColor, isCached, normalizeAngle, replaceColor, replaceNonTransparentColors, rotateFlipAll, setBackgroundColor, setXmpData

Methods inherited from class com.aspose.imaging.RasterImage

dither, getArgb32Pixel, getDefaultArgb32Pixels, getDefaultPixels, getDefaultRawData, getDefaultRawData, getHorizontalResolution, getModifyDate, getPixel, getPremultiplyComponents, getRawCustomColorConverter, getRawDataFormat, getRawDataSettings, getRawFallbackIndex, getRawIndexedColorConverter, getRawLineSize, getSkewAngle, getTransparentColor, getUpdateXmpData, getUseRawData, getVerticalResolution, isRawDataAvailable, isUsePalette, loadArgb32Pixels, loadArgb64Pixels, loadCmyk32Pixels, loadCmykPixels, loadPartialArgb32Pixels, loadPartialPixels, loadPixels, loadRawData, loadRawData, normalizeAngle, readArgb32ScanLine, readScanLine, replaceColor, replaceNonTransparentColors, rotate, saveArgb32Pixels, saveCmyk32Pixels, saveCmykPixels, savePixels, saveRawData, setArgb32Pixel, setHorizontalResolution, setPalette, setPixel, setPremultiplyComponents, setRawCustomColorConverter, setRawFallbackIndex, setRawIndexedColorConverter, setResolution, setTransparentColor, setTransparentColor, setUpdateXmpData, setUseRawData, setVerticalResolution, toBitmap, writeArgb32ScanLine, writeScanLine

Methods inherited from class com.aspose.imaging.Image

canLoad, canLoad, canLoad, canLoad, canSave, create, create, create, getBounds, getBufferSizeHint, getContainer, getDefaultOptions, getFileFormat, getFileFormat, getFittingRectangle, getFittingRectangle, getInterruptMonitor, getOriginalOptions, getPalette, getProgressEventHandler, getProgressEventHandlerInfo, getProportionalHeight, getProportionalWidth, getSize, hasBackgroundColor, isAutoAdjustPalette, load, load, load, load, load, load, resize, resizeHeightProportionally, resizeHeightProportionally, resizeWidthProportionally, resizeWidthProportionally, save, save, save, save, save, save, save, save, setAutoAdjustPalette, setBackgroundColor, setBufferSizeHint, setInterruptMonitor, setPalette

Methods inherited from class com.aspose.imaging.DataStreamSupporter

getDataStreamContainer, save, save, save

Methods inherited from class com.aspose.imaging.DisposableObject

close, dispose, getDisposed

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

WebPImage

public WebPImage(InputStream stream)

Initializes a new instance of the WebPImage class from stream.

Parameters:

stream - The stream WebP image.

Code example:

This example shows how to load a WebP image from a file stream and save it to PNG.

String dir = "c:\\temp\\";

// Load a WebP image from a file stream.
java.io.InputStream stream = new java.io.FileInputStream(dir + "test.webp");
com.aspose.imaging.fileformats.webp.WebPImage webPImage = new com.aspose.imaging.fileformats.webp.WebPImage(stream);
try {
    // Save to PNG
    // Note that only the active frame will be stored to PNG, since PNG is not a multi-page format.
    webPImage.save(dir + "test.output.png", new com.aspose.imaging.imageoptions.PngOptions());
} finally {
    webPImage.dispose();
}

WebPImage

public WebPImage(InputStream stream,
                 LoadOptions loadOptions)

Initializes a new instance of the WebPImage class from stream.

Parameters:

stream - The stream WebP image.

loadOptions - The load options.

WebPImage

public WebPImage(String path)

Initializes a new instance of the WebPImage class from file.

Parameters:

path - The path to file WebP Image

Code example:

This example shows how to load a WebP image from a file and save it to PNG.

String dir = "c:\\temp\\";

// Load a WebP image from a file.
com.aspose.imaging.fileformats.webp.WebPImage webPImage = new com.aspose.imaging.fileformats.webp.WebPImage(dir + "test.webp");
try {
    // Save to PNG
    // Note that only the active frame will be stored to PNG, since PNG is not a multi-page format.
    webPImage.save(dir + "test.output.png", new com.aspose.imaging.imageoptions.PngOptions());
} finally {
    webPImage.dispose();
}

WebPImage

public WebPImage(String path,
                 LoadOptions loadOptions)

Initializes a new instance of the WebPImage class from file.

Parameters:

path - The path to file WebP Image

loadOptions - The load options.

WebPImage

public WebPImage(RasterImage rasterImage)

Initializes a new instance of the WebPImage class from rasterImage.

Parameters:

rasterImage - The raster image.

Code example:

This example shows how to create a WebP image from another raster image.

String dir = "c:\\temp\\";

// Load a PNG image of 100x100 px.
com.aspose.imaging.fileformats.png.PngImage pngImage = new com.aspose.imaging.fileformats.png.PngImage(100, 100);
try {
    com.aspose.imaging.Graphics graphics = new com.aspose.imaging.Graphics(pngImage);

    // Fill the entire image in red.
    com.aspose.imaging.brushes.SolidBrush brush = new com.aspose.imaging.brushes.SolidBrush(com.aspose.imaging.Color.getRed());
    graphics.fillRectangle(brush, pngImage.getBounds());

    // Create a WebP image based on the PNG image.
    com.aspose.imaging.fileformats.webp.WebPImage webPImage = new com.aspose.imaging.fileformats.webp.WebPImage(pngImage);
    try {
        // Save to a WebP file with default options
        webPImage.save(dir + "output.webp", new com.aspose.imaging.imageoptions.WebPOptions());
    } finally {
        webPImage.dispose();
    }
} finally {
    pngImage.dispose();
}

WebPImage

public WebPImage(RasterImage rasterImage,
                 LoadOptions loadOptions)

Initializes a new instance of the WebPImage class from rasterImage.

Parameters:

rasterImage - The raster image.

loadOptions - The load options.

WebPImage

public WebPImage(int width,
                 int height,
                 WebPOptions options)

Initializes a new instance of the WebPImage class with empty image.

Parameters:

width - The image width

height - The image height.

options - The options.

Code example:

This example shows how to create a WebP image with the specified options from scratch.

String dir = "c:\\temp\\";

com.aspose.imaging.imageoptions.WebPOptions createOptions = new com.aspose.imaging.imageoptions.WebPOptions();
createOptions.setLossless(true);
createOptions.setQuality(100f);
//createOptions.Source = new Aspose.Imaging.Sources.FileCreateSource(dir + "output.webp");

// Create a WebP image of 100x100 px.
com.aspose.imaging.fileformats.webp.WebPImage webPImage = new com.aspose.imaging.fileformats.webp.WebPImage(100, 100, createOptions);
try {
    com.aspose.imaging.Graphics graphics = new com.aspose.imaging.Graphics(webPImage);

    // Fill the entire image in red.
    com.aspose.imaging.brushes.SolidBrush brush = new com.aspose.imaging.brushes.SolidBrush(com.aspose.imaging.Color.getRed());
    graphics.fillRectangle(brush, webPImage.getBounds());

    // Save to a WebP file
    webPImage.save(dir + "output.webp");
} finally {
    webPImage.dispose();
}

WebPImage

public WebPImage(int width,
                 int height,
                 WebPOptions options,
                 LoadOptions loadOptions)

Initializes a new instance of the WebPImage class with empty image.

Parameters:

width - The image width

height - The image height.

options - The options.

loadOptions - The load options.

Method Detail

getOptions

public WebPOptions getOptions()

Gets the options.

Value: The options.

Returns:

the options.

getPages

public Image[] getPages()

Gets the blocks.

Gets the Webp blocks.

Value: The blocks.

Specified by:

getPages in interface IMultipageImage

Specified by:

getPages in class RasterCachedMultipageImage

Returns:

the pages.

getPageCount

public int getPageCount()

Gets the page count.

Value: The page count. <autogeneratedoc></autogeneratedoc>

Specified by:

getPageCount in interface IMultipageImage

Specified by:

getPageCount in class RasterCachedMultipageImage

Returns:

the page count.

getDefaultPage

@Deprecated
public Image getDefaultPage()

Deprecated. Please use getPages()[index]

Gets the default page.

Value: The default page. <autogeneratedoc></autogeneratedoc>

Specified by:

getDefaultPage in interface IMultipageImage

Specified by:

getDefaultPage in class RasterCachedMultipageImage

Returns:

the default page.

getFileFormat

public long getFileFormat()

Gets a value of file format

Overrides:

getFileFormat in class Image

Returns:

a value of file format

See Also:

FileFormat

hasAlpha

public boolean hasAlpha()

Gets the Has alpha channel.

Value: The Has alpha channel. <autogeneratedoc></autogeneratedoc>

Overrides:

hasAlpha in class RasterCachedMultipageImage

Returns:

the Has alpha channel.

Code example:

The following example loads a WEBP image and prints information about raw data format and alpha channel.

String dir = "c:\\temp\\";
String fileName = dir + "sample.webp";
com.aspose.imaging.Image image = com.aspose.imaging.Image.load(fileName);
try {
    com.aspose.imaging.fileformats.webp.WebPImage webpImage = (com.aspose.imaging.fileformats.webp.WebPImage) image;

    // If the active TIFF frame has alpha channel, then the entire TIFF image is considered to have alpha channel.
    System.out.printf("ImageFile=%s, FileFormat=%s, HasAlpha=%s\r\n", fileName, webpImage.getRawDataFormat(), webpImage.hasAlpha());

    int i = 0;
    for (com.aspose.imaging.fileformats.webp.IFrame frame : webpImage.getBlocks()) {
        if (frame instanceof com.aspose.imaging.fileformats.webp.WebPFrameBlock) {
            com.aspose.imaging.fileformats.webp.WebPFrameBlock frameBlock = (com.aspose.imaging.fileformats.webp.WebPFrameBlock) frame;
            System.out.printf("Frame=%s, FileFormat=%s, HasAlpha=%s\r\n", i++, frameBlock.getRawDataFormat(), frameBlock.hasAlpha());
        }
    }
} finally {
    image.dispose();
}

// The output may look like this:
// ImageFile=c:\temp\sample.webp, FileFormat=RgbIndexed1Bpp, used channels: 1, HasAlpha=False
// Frame=0, FileFormat=RgbIndexed1Bpp, used channels: 1, HasAlpha=False

getPageExportingAction

public PageExportingAction getPageExportingAction()

Gets the page exporting action. Please note that setting this method will automatically release page resources after it is executed. It will be executed just before each page is saved.

Value: The page exporting action.

Specified by:

getPageExportingAction in interface IMultipageImage

Overrides:

getPageExportingAction in class RasterCachedMultipageImage

Returns:

the page exporting action.

setPageExportingAction

public void setPageExportingAction(PageExportingAction value)

Sets the page exporting action. Please note that setting this method will automatically release page resources after it is executed. It will be executed just before each page is saved.

Value: The page exporting action.

Specified by:

setPageExportingAction in interface IMultipageImage

Overrides:

setPageExportingAction in class RasterCachedMultipageImage

Parameters:

value - the page exporting action.

addPage

public void addPage(RasterImage page)

Adds page to the image.

Specified by:

addPage in interface IMultipageImageExt

Parameters:

page - The page to add.

Throws:

com.aspose.ms.System.ArgumentNullException - page is null.

addBlock

public void addBlock(IFrame block)

Adds a new Webp block.

Parameters:

block - The Webp block to add.

Code example:

This example shows how to create a multi-frame animated WebP image with the specified options.

String dir = "c:\\temp\\";

com.aspose.imaging.imageoptions.WebPOptions createOptions = new com.aspose.imaging.imageoptions.WebPOptions();
createOptions.setLossless(true);
createOptions.setQuality(100f);
createOptions.setAnimBackgroundColor((long) com.aspose.imaging.Color.getGray().toArgb());

// The default frame plus 36 + 36 additional frames.
createOptions.setAnimLoopCount(36 + 36 + 1);

// Create a WebP image of 100x100 px.
com.aspose.imaging.fileformats.webp.WebPImage webPImage = new com.aspose.imaging.fileformats.webp.WebPImage(100, 100, createOptions);
try {
    // The first circle is red
    com.aspose.imaging.brushes.SolidBrush brush1 = new com.aspose.imaging.brushes.SolidBrush(com.aspose.imaging.Color.getRed());

    // The second circle is black
    com.aspose.imaging.brushes.SolidBrush brush2 = new com.aspose.imaging.brushes.SolidBrush(com.aspose.imaging.Color.getBlack());

    // Gradually increase the angle of the red arc shape.
    for (int angle = 10; angle <= 360; angle += 10) {
        com.aspose.imaging.fileformats.webp.WebPFrameBlock block = new com.aspose.imaging.fileformats.webp.WebPFrameBlock(100, 100);
        com.aspose.imaging.Graphics graphics = new com.aspose.imaging.Graphics(block);
        graphics.fillPie(brush1, block.getBounds(), 0, angle);

        webPImage.addBlock(block);
    }

    // Gradually increase the angle of the black arc and wipe out the red arc.
    for (int angle = 10; angle <= 360; angle += 10) {
        com.aspose.imaging.fileformats.webp.WebPFrameBlock block = new com.aspose.imaging.fileformats.webp.WebPFrameBlock(100, 100);

        com.aspose.imaging.Graphics graphics = new com.aspose.imaging.Graphics(block);
        graphics.fillPie(brush2, block.getBounds(), 0, angle);
        graphics.fillPie(brush1, block.getBounds(), angle, 360 - angle);

        webPImage.addBlock(block);
    }

    // Save to a WebP file
    webPImage.save(dir + "output.webp");
} finally {
    webPImage.dispose();
}

clearBlocks

public void clearBlocks()

Clears all the Webp blocks.

insertBlock

public void insertBlock(int index,
                        IFrame block)

Adds a new Webp block.

Parameters:

index - The zero-based element, at which block will be inserted.

block - The Webp block to add.

removeBlock

public void removeBlock(IFrame block)

Removes the Webp block.

Parameters:

block - The block to remove.

Note: do not forget to Dispose the block if you will not add it to some other WebPImage.

rotate

public void rotate(float angle,
                   boolean resizeProportionally,
                   Color backgroundColor)

!:RasterCachedMultipageImage.Rotate image around the center.

Overrides:

rotate in class RasterCachedMultipageImage

Parameters:

angle - The rotation angle in degrees. Positive values will rotate clockwise.

resizeProportionally - if set to true you will have your image size changed according to rotated rectangle (corner points) projections in other case that leaves dimensions untouched and only image contents are rotated.

backgroundColor - Color of the background.

resize

public void resize(int newWidth,
                   int newHeight,
                   int resizeType)

Resizes the image.

Overrides:

resize in class RasterCachedMultipageImage

Parameters:

newWidth - The new width.

newHeight - The new height.

resizeType - The resize type.

Code example:

This example loads a WEBP image and resizes it using various resizing methods.

String dir = "c:\\temp\\";

com.aspose.imaging.fileformats.webp.WebPImage image = (com.aspose.imaging.fileformats.webp.WebPImage) com.aspose.imaging.Image.load(dir + "sample.webp");
try {
    // Scale up by 2 times using Nearest Neighbour resampling.
    image.resize(image.getWidth() * 2, image.getHeight() * 2, com.aspose.imaging.ResizeType.NearestNeighbourResample);

    // Save to PNG with default options.
    image.save(dir + "upsample.nearestneighbour.png", new com.aspose.imaging.imageoptions.PngOptions());
} finally {
    image.dispose();
}

image = (com.aspose.imaging.fileformats.webp.WebPImage) com.aspose.imaging.Image.load(dir + "sample.webp");
try {
    // Scale down by 2 times using Nearest Neighbour resampling.
    image.resize(image.getWidth() / 2, image.getHeight() / 2, com.aspose.imaging.ResizeType.NearestNeighbourResample);

    // Save to PNG with default options.
    image.save(dir + "downsample.nearestneighbour.png", new com.aspose.imaging.imageoptions.PngOptions());
} finally {
    image.dispose();
}

image = (com.aspose.imaging.fileformats.webp.WebPImage) com.aspose.imaging.Image.load(dir + "sample.webp");
try {
    // Scale up by 2 times using Bilinear resampling.
    image.resize(image.getWidth() * 2, image.getHeight() * 2, com.aspose.imaging.ResizeType.BilinearResample);

    // Save to PNG with default options.
    image.save(dir + "upsample.bilinear.png", new com.aspose.imaging.imageoptions.PngOptions());
} finally {
    image.dispose();
}

image = (com.aspose.imaging.fileformats.webp.WebPImage) com.aspose.imaging.Image.load(dir + "sample.webp");
try {
    // Scale down by 2 times using Bilinear resampling.
    image.resize(image.getWidth() / 2, image.getHeight() / 2, com.aspose.imaging.ResizeType.BilinearResample);

    // Save to PNG with default options.
    image.save(dir + "downsample.bilinear.png", new com.aspose.imaging.imageoptions.PngOptions());
} finally {
    image.dispose();
}

resizeWidthProportionally

public void resizeWidthProportionally(int newWidth,
                                      int resizeType)

Resizes the width proportionally.

Overrides:

resizeWidthProportionally in class RasterCachedMultipageImage

Parameters:

newWidth - The new width.

resizeType - Type of the resize.

resizeHeightProportionally

public void resizeHeightProportionally(int newHeight,
                                       int resizeType)

Resizes the width proportionally.

Overrides:

resizeHeightProportionally in class RasterCachedMultipageImage

Parameters:

newHeight - The new height.

resizeType - Type of the resize.

rotateFlip

public void rotateFlip(int rotateFlipType)

Rotates, flips, or rotates and flips the Active frame only.

Overrides:

rotateFlip in class RasterCachedMultipageImage

Parameters:

rotateFlipType - The rotation flip type.

See Also:

RotateFlipType

dither

public void dither(int ditheringMethod,
                   int bitsCount,
                   IColorPalette customPalette)

Performs dithering on the current image.

Overrides:

dither in class RasterCachedMultipageImage

Parameters:

ditheringMethod - The dithering method.

bitsCount - The final bits count for dithering.

customPalette - The custom palette for dithering.

crop

public void crop(Rectangle rectangle)

Cropping the image.

Overrides:

crop in class RasterCachedMultipageImage

Parameters:

rectangle - The rectangle.

crop

public void crop(int leftShift,
                 int rightShift,
                 int topShift,
                 int bottomShift)

Crop image with shifts.

Overrides:

crop in class RasterCachedMultipageImage

Parameters:

leftShift - The left shift.

rightShift - The right shift.

topShift - The top shift.

bottomShift - The bottom shift.

binarizeFixed

public void binarizeFixed(byte threshold)

Binarization of an image with predefined threshold

Overrides:

binarizeFixed in class RasterCachedMultipageImage

Parameters:

threshold - Threshold value. If corresponding gray value of a pixel is greater than threshold, a value of 255 will be assigned to it, 0 otherwise.

binarizeOtsu

public void binarizeOtsu()

Binarization of an image with Otsu thresholding

Overrides:

binarizeOtsu in class RasterCachedMultipageImage

binarizeBradley

public void binarizeBradley(double brightnessDifference,
                            int windowSize)

Binarization of an image using Bradley's adaptive thresholding algorithm using the integral image thresholding

Overrides:

binarizeBradley in class RasterCachedMultipageImage

Parameters:

brightnessDifference - The brightness difference between pixel and the average of an s x s window of pixels centered around this pixel.

windowSize - The size of s x s window of pixels centered around this pixel

grayscale

public void grayscale()

Transformation of an image to its grayscale representation

Overrides:

grayscale in class RasterCachedMultipageImage

adjustGamma

public void adjustGamma(float gamma)

Gamma-correction of an image.

Overrides:

adjustGamma in class RasterCachedMultipageImage

Parameters:

gamma - Gamma for red, green and blue channels coefficient

adjustGamma

public void adjustGamma(float gammaRed,
                        float gammaGreen,
                        float gammaBlue)

Gamma-correction of an image.

Overrides:

adjustGamma in class RasterCachedMultipageImage

Parameters:

gammaRed - Gamma for red channel coefficient

gammaGreen - Gamma for green channel coefficient

gammaBlue - Gamma for blue channel coefficient

adjustBrightness

public void adjustBrightness(int brightness)

Adjust of a brightness for image.

Overrides:

adjustBrightness in class RasterCachedMultipageImage

Parameters:

brightness - Brightness value.

adjustContrast

public void adjustContrast(float contrast)

Image contrasting

Overrides:

adjustContrast in class RasterCachedMultipageImage

Parameters:

contrast - Contrast value (in range [-100; 100])

filter

public void filter(Rectangle rectangle,
                   FilterOptionsBase options)

Filters the specified rectangle.

Overrides:

filter in class RasterCachedMultipageImage

Parameters:

rectangle - The rectangle.

options - The options.

Code example:

The following example applies various types of filters to a WEBP image.

String dir = "c:\\temp\\";

com.aspose.imaging.Image image = com.aspose.imaging.Image.load(dir + "sample.webp");
try {
    com.aspose.imaging.fileformats.webp.WebPImage webpImage = (com.aspose.imaging.fileformats.webp.WebPImage) image;

    // Apply a median filter with a rectangle size of 5 to the entire image.
    webpImage.filter(webpImage.getBounds(), new com.aspose.imaging.imagefilters.filteroptions.MedianFilterOptions(5));
    webpImage.save(dir + "sample.MedianFilter.png", new com.aspose.imaging.imageoptions.PngOptions());
} finally {
    image.dispose();
}

image = com.aspose.imaging.Image.load(dir + "sample.webp");
try {
    com.aspose.imaging.fileformats.webp.WebPImage webpImage = (com.aspose.imaging.fileformats.webp.WebPImage) image;

    // Apply a bilateral smoothing filter with a kernel size of 5 to the entire image.
    webpImage.filter(webpImage.getBounds(), new com.aspose.imaging.imagefilters.filteroptions.BilateralSmoothingFilterOptions(5));
    webpImage.save(dir + "sample.BilateralSmoothingFilter.png", new com.aspose.imaging.imageoptions.PngOptions());
} finally {
    image.dispose();
}

image = com.aspose.imaging.Image.load(dir + "sample.webp");
try {
    com.aspose.imaging.fileformats.webp.WebPImage webpImage = (com.aspose.imaging.fileformats.webp.WebPImage) image;

    // Apply a Gaussian blur filter with a radius of 5 and a sigma value of 4.0 to the entire image.
    webpImage.filter(webpImage.getBounds(), new com.aspose.imaging.imagefilters.filteroptions.GaussianBlurFilterOptions(5, 4.0));
    webpImage.save(dir + "sample.GaussianBlurFilter.png", new com.aspose.imaging.imageoptions.PngOptions());
} finally {
    image.dispose();
}

image = com.aspose.imaging.Image.load(dir + "sample.webp");
try {
    com.aspose.imaging.fileformats.webp.WebPImage webpImage = (com.aspose.imaging.fileformats.webp.WebPImage) image;

    // Apply a Gauss-Wiener filter with a radius of 5 and a smooth value of 4.0 to the entire image.
    webpImage.filter(webpImage.getBounds(), new com.aspose.imaging.imagefilters.filteroptions.GaussWienerFilterOptions(5, 4.0));
    webpImage.save(dir + "sample.GaussWienerFilter.png", new com.aspose.imaging.imageoptions.PngOptions());
} finally {
    image.dispose();
}

image = com.aspose.imaging.Image.load(dir + "sample.webp");
try {
    com.aspose.imaging.fileformats.webp.WebPImage webpImage = (com.aspose.imaging.fileformats.webp.WebPImage) image;

    // Apply a motion wiener filter with a length of 5, a smooth value of 4.0 and an angle of 90.0 degrees to the entire image.
    webpImage.filter(webpImage.getBounds(), new com.aspose.imaging.imagefilters.filteroptions.MotionWienerFilterOptions(10, 1.0, 90.0));
    webpImage.save(dir + "sample.MotionWienerFilter.png", new com.aspose.imaging.imageoptions.PngOptions());
} finally {
    image.dispose();
}

image = com.aspose.imaging.Image.load(dir + "sample.webp");
try {
    com.aspose.imaging.fileformats.webp.WebPImage webpImage = (com.aspose.imaging.fileformats.webp.WebPImage) image;

    // Apply a sharpen filter with a kernel size of 5 and a sigma value of 4.0 to the entire image.
    webpImage.filter(webpImage.getBounds(), new com.aspose.imaging.imagefilters.filteroptions.SharpenFilterOptions(5, 4.0));
    webpImage.save(dir + "sample.SharpenFilter.png", new com.aspose.imaging.imageoptions.PngOptions());
} finally {
    image.dispose();
}

resize

public void resize(int newWidth,
                   int newHeight,
                   ImageResizeSettings settings)

Resizes the image.

Overrides:

resize in class RasterCachedMultipageImage

Parameters:

newWidth - The new width.

newHeight - The new height.

settings - The resize settings.