Here is the script that I developed for Gimp, to bring out details in the image. The steps are as follows, in case you wish to try them out individually, instead of using the script
- Duplicate the layer (producing a new layer above it).
- De-saturate the new layer.
- Apply a Gaussian blur to the result, with a large radius (100 or more).
- Set Mode in the Layers dialog to Divide.
- Control the amount of correction by adjusting opacity in the Layers dialog, or by using Brightness/Contrast, Levels, or Curves tools on the new layer.
- When you are happy with the result, you can use Merge Down to combine the control layer and the original layer into a single layer.
Here is the script
;; -*-scheme-*- ;; ;; Gimp script to 'bringing out the maximum amount of detail across all areas of an image' ;; (define (script-fu-bp-bring-out-detail theImage drawable blurValue opacityValue deleteDivideLayer mergeLayers) ; step one - create a new layer, apply gaussian blur and set mode to 'grain extract' ; Create a new layer (define layerDivide (car (gimp-layer-copy drawable 0))) ; Give it a name (gimp-item-set-name layerDivide "Divide Layer") ; Add the new layer to the image (gimp-image-insert-layer theImage layerDivide 0 0) ; Call a plugin to blur the image (plug-in-gauss-rle 1 theImage layerDivide blurValue 1 1) ; Set the layer mode to 'Divide' (gimp-layer-set-mode layerDivide DIVIDE-MODE) ; Set opacity to provided value (gimp-layer-set-opacity layerDivide opacityValue) ;(gimp-image-set-active-layer theImage theLayer) (if (= deleteDivideLayer 1) (begin (gimp-image-remove-layer theImage layerDivide) ) ) (if (= mergeLayers 1) (begin (set! drawable (car (gimp-image-merge-down theImage layerDivide 2))) ) ) (gimp-displays-flush) ) (script-fu-register "script-fu-bp-bring-out-detail" ; script name "/Filters/BP/Bring out details ..." "Bring out details" ; description "BP" ; author "(c) 2016, BP" ; copyright notice "Nov 2016" ; date created "*" ; image type the script works on SF-IMAGE "Image" 0 SF-DRAWABLE "Drawable" 0 SF-ADJUSTMENT "Blur Value" '(5 0 100 1 10 0 1) SF-ADJUSTMENT "Opacity %" '(50 0 100 1 10 0 1) SF-TOGGLE "Delete Screen Layer?" FALSE SF-TOGGLE "Merge Layers?" FALSE ) ; ; end ;
Links
- Gimp – developing a script, https://twentymegahertz.wordpress.com/2016/12/30/gimp-developing-a-script/
- Gimp – searching for a script, https://twentymegahertz.wordpress.com/2016/12/25/gimp-searching-for-a-script/
- Gimp – repeated processing, https://twentymegahertz.wordpress.com/2016/12/20/gimp-repeated-processing/
- Gimp – script for image sharpening using grain extract, https://twentymegahertz.wordpress.com/2017/01/05/gimp-script-for-image-sharpening-using-grain-extract/
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