Lines Matching full:brightness
586 <p>Use MagickBrightnessContrastImage() to change the brightness and/or contrast of an image. It converts the brightness and contrast parameters into slope and intercept and calls a polynomical function to apply to the image.</p>
593 const double brightness,const double contrast)
607 <dt>brightness</dt>
608 <dd>the brightness percent (-100 .. 100). </dd>
4121 <p>MagickModulateImage() lets you control the brightness, saturation, and hue of an image. Hue is the percentage of absolute rotation from the current position. For example 50 results in a counter-clockwise rotation of 90 degrees, 150 results in a clockwise rotation of 90 degrees, with 0 and 200 both resulting in a rotation of 180 degrees.</p>
4123 <p>To increase the color brightness by 20 and decrease the color saturation by 10 and leave the hue unchanged, use: 120,90,100.</p>
4129 const double brightness,const double saturation,const double hue)
4143 <dt>brightness</dt>
