![]() ![]() ![]() Image must be grayscale, 8-bit Color, or an RGB (red, green, blue) or HSB (hue, saturation and brightness) stack. ![]() A dialog box allows the number of colors (2-256) to be specified. Heckbert's median-cut color quantization algorithm. The active image must be 8-bit grayscale or 16-bit grayscale. TheĪctive image must be 8-bit grayscale or 32-bit grayscale. Gray=0.299red+0.587green+0.114blue if "Weighted RGB to Grayscale Conversion" is checkedĬonverts to unsigned 16-bit grayscale. Grayscale using the formula gray=(red+green+blue)/3 or This scaling is not done if "Scale When Converting" is not checked in Edit>Options>Conversions. Image>Show Info displays these two values as the "Display range". Where min and max are the two values displayed in the Image>Adjust>Brightness>Contrast ImageJ converts 16-bit and 32-bit images and stacks to 8-bits by linearly scaling from min-max to 0-255, The active image must be 16-bit grayscale, 32-bit grayscale, 8-bit color or RGB color. Use this submenu to determine the type of the active image or to convert it to another type. Home | contents | previous | next Image Menu ![]()
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