Changes the value of individual pixels based on the intensity
of each pixel channel. The result is a high-contrast image.
More precisely each channel value of the image is 'thresholded'
so that if it is equal to or less than the given value it is set
to zero, while any value greater than that give is set to it
maximum or QuantumRange.
Changes the value of individual pixels based on the intensity of each pixel channel. The result is a high-contrast image.
More precisely each channel value of the image is 'thresholded' so that if it is equal to or less than the given value it is set to zero, while any value greater than that give is set to it maximum or QuantumRange.