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git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1021 632fc199-4ca6-4c93-a231-07263d6284db
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DRC
2013-08-23 06:38:59 +00:00
parent 38cb1ec2a7
commit b2c4745aa3
8 changed files with 118 additions and 76 deletions
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25
java/org/libjpegturbo/turbojpeg/TJ.java
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@@ -192,18 +192,19 @@ public final class TJ {
*/
public static final int PF_ARGB = 10;
/**
* CMYK pixel format. Unlike RGB, which is a display colorspace,
* CMYK (Cyan/Magenta/Yellow/Key) is a print colorspace in which the
* value of each color component corresponds to the amount of cyan, magenta,
* yellow, or black ink that is applied to a white background. In order to
* convert between CMYK and RGB, it is necessary to use a color management
* system (CMS.) A CMS will attempt to map colors within the printer's gamut
* to perceptually similar colors in the display's gamut and vice versa, but
* the mapping is typically not 1:1 or reversible, nor can it be defined with
* a simple formula. Thus, such a conversion is out of scope for a codec
* library. However, the TurboJPEG API allows for compressing CMYK pixels
* into a YCCK JPEG image (see {@link #CS_YCCK}) and decompressing YCCK JPEG
* images into CMYK pixels.
* CMYK pixel format. Unlike RGB, which is an additive color model used
* primarily for display, CMYK (Cyan/Magenta/Yellow/Key) is a subtractive
* color model used primarily for printing. In the CMYK color model, the
* value of each color component typically corresponds to an amount of cyan,
* magenta, yellow, or black ink that is applied to a white background. In
* order to convert between CMYK and RGB, it is necessary to use a color
* management system (CMS.) A CMS will attempt to map colors within the
* printer's gamut to perceptually similar colors in the display's gamut and
* vice versa, but the mapping is typically not 1:1 or reversible, nor can it
* be defined with a simple formula. Thus, such a conversion is out of scope
* for a codec library. However, the TurboJPEG API allows for compressing
* CMYK pixels into a YCCK JPEG image (see {@link #CS_YCCK}) and
* decompressing YCCK JPEG images into CMYK pixels.
*/
public static final int PF_CMYK = 11;