EXCERPT page containing first few paragraphs. 2024-05-08 11:17:24
UA_SEARCH_BOT_compatible_botmozilla/5.0 applewebkit/537.36 (khtml, like gecko; compatible; claudebot/1.0; +claudebot@anthropic.com) @ 3.21.233.41
For full access, subscribe here. Or click title to login. 
Localized Contrast Enhancement over Entire Image
The human visual system perceives sharpness and contrast together—more contrast means more perceived sharpness.
A final step in adding “snap” to an image (monochrome or otherwise) involves localized contrast enhancement, applied over the entire image.
“Localized” refers to math being done over a relatively small area (the in pixels) as compared to a global effect as with a Curves layer. This differs from regular sharpening (as with Smart Sharpen), which might use a Radius of 0.7 pixels or so.
The trick here is a low level of sharpening (the ) applied over a fairly large areas (a 50.0 pixel Radius is about 7850 pixels). It is thus adaptive to the subject matter but in pretty broad strokes, so to speak.
Article continues for subscribers...
Diglloyd Monochrome is by yearly subscription. Subscribe now for about 8 cents a day.
BEST DEAL: get full access to ALL 8 PUBLICATIONS for only 68 cents a day ($249.95)!
Diglloyd Infrared Photography covers cameras and lenses for infrared photography.
The coverage explains all the issues involved in shooting for monochrome and in infrared. It is not a review of any particular camera or lens, though many examples are included.
- Monochrome vs color cameras.
- Post processing for monochrome.
- Guidance on workflow for infrared, including black and white and channel swapping for false-color images.
- How infrared renders, and why certain spectral cutoffs matter: false color vs black and white.
- Image quality issues to be on the lookout for in infrared.
- Numerous lens evaluations in infrared.
View an overview of infrared as well as filter spectral transmission plus examples from an optimal lens.
