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Photography Glamour posted on Jan 29, 2008
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Description


model: Julie Simone November 2, 2007 in Washington, D.C. -------------- more than you want to know about post-processing this picture: The difficulty in dealing with this picture was that Julie Simone didn't stand out enough from the background walls. (That wasn't her fault, I should have added another lighting source on her which didn't light walls behind her.) The obvious steps to take for dealing with this issue, such as tweaking the contrast, luminosity, and color temperature didn't seem to help, or they caused more problems. One approach would have been to add a mask and then treat Julie and the background differently. This is something I did for "sitting 1" for example, where my motivation was to alter the color of the background wall. I didn't want the walls to be a different color here, just less prominent. So I split the original sRGB color image from my camera into all sorts of channels, from RGB, which gave me separate 8-bit Red, Blue and Green images, as well as three images from the channels of the HLS color space, and the three channels from the YIQ color model. I like the HLS model and have used it for other black & white images (for example one of my personal favorites "julie simone lost in thought"). But in this case I was using the property of HLS and YIQ for one channel to just look like a normal black & white image. The L-channel and Y-channel greyscales are not identical, nor are they quite the same as the result of a default greyscale conversion which desaturates the R,G, and B channels. From those I used the Green and Blue channels to make a new greyscale -- basically just dropping the Red information which makes Julie too different from the background. I combined the greyscale images from the different channels together in different ways, using an elliptically shaped mask to concentrate more brightness in her face and chest. At the end I did the same thing with the color, that was added in using an elliptical mask. The result of all of this is that Julie Simone pops out of the image much better, I think, without anything terribly drastic being done to the image as a whole. Time consuming perhaps, but not drastic. In the final version Julie's face and chest are both brighter and more saturated (that is, they have more color) than the rest of the images. The walls behind her are less bright and have less color. The reduction in brightness and saturation decreases gradually so there is no abrupt transition zone I need to worry about. ------- If the terminology I use seems odd it is because I use Corel PhotoPaint and not PhotoShop, PaintShop Pro or The GIMP like the rest of planet.

Comments (4)


CaressingTheDark

9:31PM | Tue, 29 January 2008

Great expression and lighting. Such a gorgeous model to work with I am sure

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Richard_Mogridge

4:41AM | Wed, 30 January 2008

Very nice. Wonderful composition and lighting. She is so splendidly beautiful in every possible way. 5 stars.

)

toddaking

3:19PM | Wed, 30 January 2008

Excellent picture. Todd

)

Rockdog

12:10AM | Thu, 31 January 2008

oh.. love the expression..


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