Creating grain like texture in a digital image.
Apr 17, 2024 12:38:34 #
I am currently working on that and need the input from the folks in this section.
My experience...
► Grain depended on the emulsion speed (ISO) more than anything else.
► Grain was formed by clumps of silver. The higher the ISO, the larger the clumps.
► Grain was random in distribution and size.
► When enlarging a negative to create an image, the clumps were also enlarged and as sharp as the projected image.
► Grain was black, not gray.
► Grain visibility depended on the luminosity of the image projected. It was almost non-existent in the black, preeminent in the mid-range and nonexistent in the highlight.
Finding samples of film grain online is not as easy as it seems. I found numerous samples, but all were small. Resizing them is not an option.
Comments so far?
My experience...
► Grain depended on the emulsion speed (ISO) more than anything else.
► Grain was formed by clumps of silver. The higher the ISO, the larger the clumps.
► Grain was random in distribution and size.
► When enlarging a negative to create an image, the clumps were also enlarged and as sharp as the projected image.
► Grain was black, not gray.
► Grain visibility depended on the luminosity of the image projected. It was almost non-existent in the black, preeminent in the mid-range and nonexistent in the highlight.
Finding samples of film grain online is not as easy as it seems. I found numerous samples, but all were small. Resizing them is not an option.
Comments so far?
Having fun with a comic drawn by Franquin,
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