It's a histogram of pure brightness values, used in photography and in all those
image processing programs.
See http://manual.gimp.org/en/gimp-histogram-dialog.html:
"For RGB images, it is convenient to define a Value “pseudochannel ”. This is
not a real color channel: it does not reflect any inf
> Great!
> Works fine. For the channels R, G, B I get exactly the same histograms as
> GIMP shows.
> For the combined grayscale histogram I get a different curve, but this
> depends on how the brightness value is computed. Have to read more.
>
You get an histogram only for R, G, B and Alpha. What
Great!
Works fine. For the channels R, G, B I get exactly the same histograms as GIMP
shows.
For the combined grayscale histogram I get a different curve, but this depends
on how the brightness value is computed. Have to read more.
Am 13.03.2011 03:49, schrieb Benoît Minisini:
>
> I implemented
> For Image.Equalize and Image.Normalize, the color values (histogram) of the
> image must be internally read.
>
> Would it be possible to access those data? I would like to draw a
> histogram. Right now, I can't find any method of image class that would
> let me read the color values.
>
> Regard
For Image.Equalize and Image.Normalize, the color values (histogram) of the
image must be internally read.
Would it be possible to access those data? I would like to draw a histogram.
Right now, I can't find any method of image class that would let me read the
color values.
Regards
Matti
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