Mercurial > octave
diff scripts/image/rgb2hsv.m @ 20665:67e6343cd29a
Add support for colorspace conversion of signed integers images (patch #8709)
* scripts/image/private/colorspace_conversion_input_check.m: add support for
signed integers. 16 bit signed integers are common and supported by the
image package. We might as well support 8 bit signed as well.
* scripts/image/hsv2rgb.m, scripts/image/rgb2hsv.m, scripts/image/rgb2ntsc.m:
add tests for signed integer images.
| author | Carnë Draug <carandraug@octave.org> |
|---|---|
| date | Wed, 28 Oct 2015 22:34:43 +0000 |
| parents | a278de349250 |
| children | 1672bb8882dd |
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--- a/scripts/image/rgb2hsv.m Wed Oct 28 19:51:02 2015 +0000 +++ b/scripts/image/rgb2hsv.m Wed Oct 28 22:34:43 2015 +0000 @@ -166,6 +166,7 @@ %! rgb_double = reshape ([1 0 1 .5 1 1 0 .5 0 1 1 .5], [2 2 3]); %! rgb_uint8 = reshape (uint8 ([255 0 255 128 255 255 0 128 0 255 255 128]), %! [2 2 3]); +%! rgb_int16 = int16 (double (rgb_double * uint16 (65535)) -32768); %! expected = reshape ([1/6 1/2 5/6 0 1 1 1 0 1 1 1 .5], [2 2 3]); %! %! assert (rgb2hsv (rgb_double), expected)