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Localized Contrast Enhancement
Localized contrast enhancement can quickly and easily turn a dull image into one with more snap and interest.
While trivially easy to do, some judgment is needed to avoid an unnatural or harsh result.
Show below is the technique: Photoshop
The settings are important: a very large 50 pixel radius, and an of 5% - 10%, with 5% producing subtle improvements, and values significantly beyond 10% beginning to encroach into “too much” territory. The to be used will vary by image, but 8% is a fairly safe bet for most images. To keep things simple, leaving the Radius value alone and varying the Amount makes it easier to acquire judgment on what is reasonable.
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Diglloyd Making Sharp Images articulates years of best practices and how-to, painstakingly learned over a decade of camera and lens evaluation.
Save yourself those years of trial and error by jump-starting your photographic technical execution when making the image. The best lens or camera is handicapped if the photographer fails to master perfect shot discipline. High-resolution digital cameras are unforgiving of errors, at least if one wants the best possible results.
- Eases into photographic challenges with an introductory section.
- Covers aspects of digital sensor technology that relate to getting the best image quality.
- Technique section discusses every aspect of making a sharp image handheld or on a tripod.
- Depth of field and how to bypass depth of field limitations via focus stacking.
- Optical aberrations: what they are, what they look like, and what to do about them.
- MTF, field curvature, focus shift: insight into the limitations of lab tests and why imaging performance is far more complex than it appears.
- Optical aberrations: what they are, what they look like, and what to do about them.
- How to test a lens for a “bad sample”.
Intrigued? See Focusing Zeiss DSLR Lenses For Peak Performance, PART ONE: The Challenges, or (one topic of many) field curvature.
