Contrast masking is a compression method of the range of brightness and obtaining good detail in highlights and shadows. The result is comparable to a HDR processing, but uses a single image and covers a range of more limited brightness. If the shadow or highlight detail is not available in the original image, it cannot be emphasized with this method. In this case, true HDR, with multiple images shot in various exhibitions, may be necessary.
This process will work in most photo editors, other than Photoshop, with variations in menus and controls. This tutorial provides general guidance for each step, followed by the specific directions of click of the mouse for Photoshop. Directions of click of the mouse may not exactly the same for your version of Photoshop.
Step 1. Duplicate the layer.
Layer - > double layer
Step 2 Desaturate the layer that you just created.
Improve - > adjust color - > remove color (Ctrl + Shift + U)
Desaturating removes colors - the result should look like a black and white photo.
Step 3 Invert the layer that you just created.
Image - > adjustments - > reverse
You should now have what looks like a negative black and white image.
Step 4 The new value Overlay layer blending mode (mode soft light works as well for photos.) (Some of the other modes to try if you want a more artificial effect).
Use the drop-down list in the layers window
Step 5 Applies a Gaussian blur, adjust the RADIUS until it looks as you want.
Filter - > blur - > Gaussian blur
Step 6 Adjust the opacity of the layer until it looks good.
Use the slider at the top of the window layers
Free contrast masking plug-in for Photoshop is available at: http://www.photo-plugins.com
Get all the photography information you need at the Brooks Photopedia: http://www.brooksphotopedia.com
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