Re: RGB to YCrCb Conversion testing
- From: beaker <notmyrealaddress@xxxxxxxxxxxxxxxxxxxxxxx>
- Date: Wed, 28 Sep 2005 16:05:21 +0100
Kenny Dargan wrote:
Hi there,
Im currently working on an RGB to YCrCb converter design and am looking
for a way to test the module on still images. I am having trouble
finding a way to view and store YCrCb still images. Does anyone know of
any file formats that store Ycrcb data in a similar way to the way the
PPM (ascii) format stores RGB? Are there any applications i can use to
view YCrCb as an output? Is this method of testing even possible? Any
help would be much appreciated.
Thanks, Kenny
Well, not quite what you asked for, but you could use a raw video player such as this one, after all a still is just one frame of video...
http://www.programmersheaven.com/zone16/cat671/38467.htm
File format is raw 8 bit (binary, not ascii) Y data followed by the U (Cr) follwed by the V (Cb) for various chroma subsamplings.
Can't recall off the top of my head what YCrCb->RGB conversion it uses for display, but you should at least get a rough idea of whether your own routines are working.
.
- References:
- RGB to YCrCb Conversion testing
- From: Kenny Dargan
- RGB to YCrCb Conversion testing
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