Class ImageInfo
- Direct Known Subclasses:
PngImageInfo
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Nested Class Summary
Nested ClassesModifier and TypeClassDescriptionstatic enumstatic enum -
Constructor Summary
ConstructorsConstructorDescriptionImageInfo(String formatDetails, int bitsPerPixel, List<String> comments, ImageFormat format, String formatName, int height, String mimeType, int numberOfImages, int physicalHeightDpi, float physicalHeightInch, int physicalWidthDpi, float physicalWidthInch, int width, boolean progressive, boolean transparent, boolean usesPalette, ImageInfo.ColorType colorType, ImageInfo.CompressionAlgorithm compressionAlgorithm) -
Method Summary
Modifier and TypeMethodDescriptionvoiddump()intReturns the bits per pixel of the image data.Returns theImageInfo.ColorTypeof the image.Returns a list of comments from the image file.Returns a description of the compression algorithm, if any.Returns the image file format, ie.Returns a description of the file format, ie.Returns a string with the name of the image file format.intReturns the height of the image in pixels.Returns the MIME type of the image.intReturns the number of images in the file.intReturns horizontal dpi of the image, if available.floatReturns physical height of the image in inches, if available.intReturns vertical dpi of the image, if available.floatReturns physical width of the image in inches, if available.intgetWidth()Returns the width of the image in pixels.booleanReturns true if the image is progressive or interlaced.booleanReturns true if the image has transparency.toString()voidtoString(PrintWriter pw, String prefix) booleanReturns true if the image uses a palette.
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Constructor Details
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ImageInfo
public ImageInfo(String formatDetails, int bitsPerPixel, List<String> comments, ImageFormat format, String formatName, int height, String mimeType, int numberOfImages, int physicalHeightDpi, float physicalHeightInch, int physicalWidthDpi, float physicalWidthInch, int width, boolean progressive, boolean transparent, boolean usesPalette, ImageInfo.ColorType colorType, ImageInfo.CompressionAlgorithm compressionAlgorithm)
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Method Details
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dump
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getBitsPerPixel
Returns the bits per pixel of the image data.- Returns:
- bits per pixel of the image data.
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getColorType
Returns theImageInfo.ColorTypeof the image.- Returns:
- image color type.
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getComments
Returns a list of comments from the image file.This is mostly obsolete.
- Returns:
- A list of comments.
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getCompressionAlgorithm
Returns a description of the compression algorithm, if any.- Returns:
- compression algorithm description.
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getFormat
Returns the image file format, ie. ImageFormat.IMAGE_FORMAT_PNG.Returns ImageFormat.IMAGE_FORMAT_UNKNOWN if format is unknown.
- Returns:
- a constant defined in ImageFormat.
- See Also:
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getFormatDetails
Returns a description of the file format, ie. format version.- Returns:
- file format description.
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getFormatName
Returns a string with the name of the image file format.- Returns:
- the name of the image file format.
- See Also:
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getHeight
Returns the height of the image in pixels.- Returns:
- image height in pixels.
- See Also:
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getMimeType
Returns the MIME type of the image.- Returns:
- image MIME type.
- See Also:
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getNumberOfImages
Returns the number of images in the file.Applies mostly to GIF and TIFF; reading PSD/Photoshop layers is not supported, and Jpeg/JFIF EXIF thumbnails are not included in this count.
- Returns:
- number of images in the file.
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getPhysicalHeightDpi
Returns horizontal dpi of the image, if available.Applies to TIFF (optional), BMP (always), GIF (constant: 72), Jpeg (optional), PNG (optional), PNM (constant: 72), PSD/Photoshop (constant: 72).
- Returns:
- returns -1 if not present.
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getPhysicalHeightInch
Returns physical height of the image in inches, if available.Applies to TIFF (optional), BMP (always), GIF (constant: 72), Jpeg (optional), PNG (optional), PNM (constant: 72), PSD/Photoshop (constant: 72).
- Returns:
- returns -1 if not present.
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getPhysicalWidthDpi
Returns vertical dpi of the image, if available.Applies to TIFF (optional), BMP (always), GIF (constant: 72), Jpeg (optional), PNG (optional), PNM (constant: 72), PSD/Photoshop (constant: 72).
- Returns:
- returns -1 if not present.
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getPhysicalWidthInch
Returns physical width of the image in inches, if available.Applies to TIFF (optional), BMP (always), GIF (constant: 72), Jpeg (optional), PNG (optional), PNM (constant: 72), PSD/Photoshop (constant: 72).
- Returns:
- returns -1 if not present.
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getWidth
Returns the width of the image in pixels.- Returns:
- image width in pixels.
- See Also:
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isProgressive
Returns true if the image is progressive or interlaced.- Returns:
trueif the image is progressive or interlaced,falseotherwise.
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isTransparent
Returns true if the image has transparency.- Returns:
trueif the image has transparency,falseotherwise.
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toString
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toString
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usesPalette
Returns true if the image uses a palette.- Returns:
trueif the image uses a palette,falseotherwise.
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