along the same lines of the color filters discussed previously, many software packages have the ability to lighten or darken tonality of colors, which in turn darkens or lightens the gray tones produced when converting to black and white. one can use these tonal adjustments to add or remove contrast based on color tones in the original image. care must be taken as these tonal adjustments are global throughout the image.
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Sand Dune Shapes
contrast in black and white - part 2
this extended look into contrast focuses on the color filter(s) as a method of adding contrast to our images. a color filter in software is equivalent to adding a color filter to the front of your lens in the old-school (or current) film days. color filters disallow certain colors from coming into the black and white conversion and essentially lighten or darken certain colors. it is in this way we can wisely add contrast to our black and white images.
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