diff options
| author | dcommander <dcommander@632fc199-4ca6-4c93-a231-07263d6284db> | 2013-08-18 11:04:21 +0000 |
|---|---|---|
| committer | dcommander <dcommander@632fc199-4ca6-4c93-a231-07263d6284db> | 2013-08-18 11:04:21 +0000 |
| commit | 07f23787680bd1b1dce808d822e7e84b0b116c58 (patch) | |
| tree | 666d06c779d87a7491ffc7a9134920d3b44e950e /java/doc/org | |
| parent | 073d826a719de35ef6f50047ea975099f9b657ba (diff) | |
Add 4:1:1 subsampling support in the TurboJPEG Java API
git-svn-id: svn://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1017 632fc199-4ca6-4c93-a231-07263d6284db
Diffstat (limited to 'java/doc/org')
| -rw-r--r-- | java/doc/org/libjpegturbo/turbojpeg/TJ.html | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/java/doc/org/libjpegturbo/turbojpeg/TJ.html b/java/doc/org/libjpegturbo/turbojpeg/TJ.html index 50ade49..2f27246 100644 --- a/java/doc/org/libjpegturbo/turbojpeg/TJ.html +++ b/java/doc/org/libjpegturbo/turbojpeg/TJ.html @@ -291,6 +291,14 @@ TurboJPEG utility class (cannot be instantiated) <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE>static int</CODE></FONT></TD> +<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html#SAMP_411">SAMP_411</A></B></CODE> + +<BR> + 4:1:1 chrominance subsampling.</TD> +</TR> +<TR BGCOLOR="white" CLASS="TableRowColor"> +<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> +<CODE>static int</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html#SAMP_420">SAMP_420</A></B></CODE> <BR> @@ -550,6 +558,25 @@ public static final int <B>SAMP_440</B></PRE> </DL> <HR> +<A NAME="SAMP_411"><!-- --></A><H3> +SAMP_411</H3> +<PRE> +public static final int <B>SAMP_411</B></PRE> +<DL> +<DD>4:1:1 chrominance subsampling. The JPEG or YUV image will contain one + chrominance component for every 4x1 block of pixels in the source image. + JPEG images compressed with 4:1:1 subsampling will be almost exactly the + same size as those compressed with 4:2:0 subsampling, and in the + aggregate, both subsampling methods produce approximately the same + perceptual quality. However, 4:1:1 is better able to reproduce sharp + horizontal features. Note that 4:1:1 subsampling is not fully accelerated + in libjpeg-turbo. +<P> +<DL> +<DT><B>See Also:</B><DD><A HREF="../../../constant-values.html#org.libjpegturbo.turbojpeg.TJ.SAMP_411">Constant Field Values</A></DL> +</DL> +<HR> + <A NAME="NUMPF"><!-- --></A><H3> NUMPF</H3> <PRE> |