Lines Matching refs:gamma
59 <p>AutoGammaImage() extract the 'mean' from the image and adjust the image to try make set its gamma appropriatally.</p>
355 <p>GammaImage() gamma-corrects a particular image channel. The same image viewed on different devices will have perceptual differences in the way the image's intensities are represented on the screen. Specify individual gamma levels for the red, green, and blue channels, or adjust all three with the gamma parameter. Values typically range from 0.8 to 2.3.</p>
357 <p>You can also reduce the influence of a particular channel with a gamma value of 0.</p>
362 MagickBooleanType GammaImage(Image *image,const double gamma,
378 <dd>the image gamma as a string (e.g. 1.6,1.2,1.0). </dd>
381 <dt>gamma</dt>
382 <dd>the image gamma. </dd>
456 <p>Gamma specifies a gamma correction to apply to the image.</p>
462 const double white_point,const double gamma,ExceptionInfo *exception)
491 <p>LevelizeImage() applies the reversed LevelImage() operation to just the specific channels specified. It compresses the full range of color values, so that they lie between the given black and white points. Gamma is applied before the values are mapped.</p>
501 const double white_point,const double gamma,ExceptionInfo *exception)
523 <dt>gamma</dt>
524 <dd>adjust gamma by this factor before mapping values. </dd>
