Tanel Posted February 7, 2008 Share Posted February 7, 2008 This plugin (LCE for short) allows to clarify flat or hazy looking photos. It also adds depth or three-dimensional look sometimes. For most of photos you won't need it, but sometimes it's very useful: for distant landscapes or clouds for example. By default the effect is very subtle - to provide enhanced, but still natural looking result. Menu location: Effects > Photo. Download as part of my plugin pack. Updated to version 1.2 (2008-12-24)! Changes: few UI and code optimizations. Updated to version 1.1 (2008-08-31)! - Compatibility fix for paint.net 3.36 Controls: Amount - percentage of contrast to be added Radius - width of contrast detection area Smoothing - reduces the effect gradually at extreme shadows and highlights, to avoid overprocessed look or color clipping. Amount 10-30 should be sufficient for natural result. Radius should be chosen according to image size. There is no rule here but generally: the larger the image, the greater radius you may need. 60 is about optimal for screen size image. 90 or more for large (>3MP) images. 30 for web size images. Smoothing at default setting 5 prevents color clipping in extreme shadows and highlights. Increasing it mutes the effect in shadows and highlights even further. Reducing to zero turns shadows/highlights preserving off. Notes: Similar effect was possible with Sharpen+ plugin, but this one is specially configured for contrast enhancement and is twice faster. Contrast is applied to pixel's brightness only, preserving original hue and saturation. Try also special contrast effects: with several (3-4) passes at reducing radius and growing amount (for example Amount/Radius: 10/60->20/30->30/10). Below are some links to tutorials describing the LCE technique using Photoshop's Unsharp Mask. This plugin does the same, but avoids color shift and clipping problems noted in those pages. <!-- m -->http://www.cambridgeincolour.com/tutori ... cement.htm<!-- m --> <!-- m -->http://www.earthboundlight.com/phototip ... -mask.html<!-- m --> <!-- m -->http://www.luminous-landscape.com/tutor ... ment.shtml<!-- m --> <!-- m -->http://www.lonestardigital.com/photoshop_quicktips.htm<!-- m --> (note: radius 50 in Photoshop is about equal to radius 100 in Paint.NET) Samples: 1st pic - original 2nd pic - LCE, defaults Resized to 40% for web sample. 1st pic - original 2nd pic - Advanced Greyscale plugin: R 100, G 50, B 0 3rd pic - LCE, 4 passes: Amount/Radius 10/60->20/30->30/10->40/5 (Smoothing always 5). Resized to 33% for web sample. Remember the look of good old b/w photos? Enjoy! 😎 Quote Link to comment Share on other sites More sharing options...
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