Photo Techniques: Contrast Masking

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Portugal
Title: Cold, Tepid and WarmNikon Coolpix 5700
Cold, Tepid and Warm (22) *
Eagle78 Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 517 W: 32 N: 384] (1925)


martin Gold Star Critiquer/Gold Workshop Editor/Silver Note Writer [C: 514 W: 264 N: 37] (1242) [2003-12-14 16:09:02] [32]
Yet another Workshop on Contrast Masking. But there are so many new members joining all the time that I thought that another one is justified -- and that Marco's wondereful image provides a nice opportunity. Using Elements 2, the steps were:

1. Create a Duplicate Layer.
2. Enhance / Adjust Colour / Remove Colour.
3. Image / Adjustments / Invert.
4. In the Layers palette, select Overlay in the options bar.
5. Still in the Layers palette, set the % for Opacity.
6. Filter / Blur / Gaussian blur: set the pixels radius.
7. Flatten image.

You use trial-and-error to determine what opacity (step 5) and Gaussian blur (step 6) are appropriate for the picture and for your tastes.

In this case, I set the opacity at 70% and the Gaussian blur at 30. But then, to exaggerate the effect to show what is possible, I repeated the whole process with the same settings. I also added a frame. [Since the original image was only 34 KB, the post-processing image was only 167 KB, so no down-sizing was necessary for uploading to TE.]

I should say that, whereas my own preference is for the one involving just one application of contrast masking, MY SON PREFERS THE ORIGINAL IMAGE. I hope that, even if everyone agrees with my son, some members may nevertheless find it interesting to see what contrast masking can achieve.
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France
Title: The City of Lights INikon Coolpix 5700
The City of Lights I (25) *
Curioso Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 585 W: 287 N: 1499] (8920)


AdrianW Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1028 W: 1184 N: 346] (2201) [2003-07-20 11:25:54] [12]
Used Contrast Masking to bring out a bit more shadow detail and reduce the highlights slightly. NewLayerViaCopy, Desaturate, Invert, Blur/Guassian/19px, blend layers Overlay 100%. Used a soft edged eraser on parts of the sky to keep it dark.
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Afghanistan
Title: Knife SharpenerOlympus Camedia 750
Knife Sharpener (16)
DaveLarson Gold Star Critiquer/Gold Note Writer [C: 76 W: 0 N: 144] (798)


green Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 243 W: 226 N: 117] (1005) [2004-03-17 10:28:43] [11]
In Photoshop:

- Correcting level with adjustement layer and setting the white point on the man hat and black point in the shadow under the shelf on the man left handside. Flaten layers

- Applied contrast masking:
* Create 2 duplicate layers of the background layer
* Desaturate the 2 new layer and invert them.
* De-activate one of the new layer and select the other one.
* Apply some gaussian blur (19px) to the selected layer. Change the layer merging mode to Overlay and its opacity to 50%.
* Merge visible layer and re-activate the layer that was de-activate earlier.
* Change the activated layer merging mode to "overlay" and its opacity to 15%.

- Sharpen with Unsharp Masking:
Gain: 100%
Radius: 0,5
Threshold: 1

Hope you'll like.
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United Kingdom
Title: BookvilleCanon Ixus 400
Bookville (28) *
RGatward Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 4163 W: 141 N: 3773] (19293)

Cropping and contrast masking
Cropping and contrast masking
Michael_Gan Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 578 W: 75 N: 694] (2761) [2004-07-20 14:23:45] [5]
Using Photoshop, I applied the following steps:

1. crop to new composition
2. duplicate layer
3. desaturate this layer
4. invert this layer
5. set layer mode to overlay
6. apply Gaussian blur of 20 to this layer
7. USM: 100/0.5/1
8. save for web

I hope I did not ruin your picture too much!
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Thailand
Title: Pakbia IslandCanon Ixus V2
Pakbia Island (21) RP*
Rupes Gold Star Critiquer/Gold Workshop Editor/Silver Note Writer [C: 117 W: 60 N: 32] (913)


AdrianW Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1028 W: 1184 N: 346] (2201) [2003-11-19 20:54:43] [12]
Purpose of this Workshop: To try and recover some shadow detail, and correct a slightly sloping horizon.

Method: Used Contrast Masking to bring out some more shadow detail, NewLayerViaCopy, Desaturate, Invert, Blur/Gaussian 19px, Merge/Overlay 50%, Flatten Image. Then repeated using No Blur, and Merge/Overlay 25%. Selected the red by the little boy using Lasso and Saturation -15 to tone it down a little. Rotated 1.51°CW to straighten the horizon. Finally Sharpened at 20% to bring out a little more detail.

I hope you like it :-)
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