... High Pass Sharpening with light/dark Halo control ...
For the nature/landscape photography I prefer, I like to use multiple and
sequential High Pass sharpening at various blur radius to increase
contrasts for small, medium, and large image area details but miss
the light/dark Halo controls that other PWP7 sharpening transforms
At present I use a sequential PWP7 “snippet” *.wfl but cannot incorporate a Halo control until after the *.wfl process using Composite-Blend with an original image and the workflow output image and a Halo control mask.
More detail as to what I do currently:
High Pass sharpening, single or multiple passes used for:
1) small detail [adjustable 1 to 5 Blur radius, perhaps 3],
2) medium detail [adjustable 5 to 15 blur radius, perhaps 10], and
3) local contrast enhancement [adjustable 15 or greater blur radius, perhaps 40]
At present, preferred sequence for multiple passes is 2), 1), and finally 3). Sometimes 2), then 1) can be serially performed as describe in step ...1) and its Option2 below.
Proposed: High Pass sharpening with light/dark Halo control; 0 to 100 Threshold; 0 to 256 Blur Radius; Composite Soft Light or Hard Light blending; and optional Luminance channel High Pass with Soft or Hard Light blending to avoid color changes.
A Single-Pass Manual work flow steps using PWP7 where Img0 = starting image for medium and included optional small detail sharpening:
...1) Click on Img0 and open the Blur-High Pass transform creating “Img1-RGBcolor” with preferred settings. Option1: Extract Img0’s Luminance channel and create a preferred Blur-High Pass image version, “Img1-Luminance”. Perhaps for medium detail: Amount = 100; Threshold = 100; and Radius = 10.
Option2: add-in Small Detail edge contrasts by clicking on either the "Img1-RGBcolor" or Img1-Luminance" High Pass image version and open Sharpen-Unsharp Mask with initial settings: Amount = 100; Light Halo = 3.5; Dark Halo = 87.5; Radius = 2; and Threshold = 3... ...increase the Threshold setting if interpolation artifacts appear especially in large low contrast image areas like sky/clouds.
...2) Click on either Img1 versions and open/lower-left Apply Add a Mask Tool-Brightness stair step Curve [0,0] [50,0] [50,100] [100,100]… …click OK or leave mask ‘active’. Mask white = light Halo amount control and Mask black = dark Halo amount control.
Hint: OPT-Load a previously saved curve file whose text version is:
point 0 0 0
point 1 128 255
Click on Img0 and open Composite-Hard Light or Soft Light where:
Input = Img0; Overlay = either Img1 versions, Overlay Amount Mask = the resulting ...2)
mask. Perhaps Input Amount = 50; Overlay Mask white Amount
= 20; Overlay Mask black Amount = 100; and
Operation = Hard Light, often preferring Soft Light depending upon
Adjust the Composite transform settings to preference while
monitoring an updating Preview. Click Apply or OK.
...5) Click on the resulting ...4) image and repeat ...1) through ...4), if preferred, selecting a different High Pass blur radius in step ...1).
Img0 is an out-of-camera, full-sized Fuji X100T jpeg.
2017 -- All