Download aDStretch for free
Download aDStretch DStretch is a PC and Mac program used by rock art researchers to make faint rock art visible.
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This is an Android version intended for use in the field at a rock art site. Eight enhancements come with parameters that appsfire can adjust the strength and saturation of the enhancements. Enhancements can be applied to a photo from the camera or from the gallery.
Improvements can be saved. For ease of use, you can designate a default enhancement (I recommend CRGB) that is automatically applied when an image is loaded.
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CRGB, YRD, YRE, RGB0: good for red pigments.
YDT, YRD, YWE: general purpose.
YDT, YBK, YYE: good for yolks.
See DStretch.com for more information on DStretch and enhancements.
In addition to choosing the default enhancement, you can use the menu to set:
Scale. This is the power of improvement.
Saturation. This controls the saturation of the enhancement. Set to 0 for grayscale, 1.0 for normal.
Megapixel limit. Android phones may have memory issues with large images. Set it low to avoid crashes, high to get higher resolution for enhancements.
Output directory. This is where saved upgrades will be placed.
Toggle diagnostics. Turn on for diagnostic information.
