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Gamma Differences Windows has used a gamma of 2.2 since its introduction. Mac OS X has used a gamma of 1.8 for all versions exce ...

Final Check for iPhone UI Your iPhone or iPod’s screen and calibration will likely be different from your Mac or PC’s screen and ...

Compositing in Adobe Photoshop: Time- Saving Tips Daniel Durrans Compositing is a skill and process that spans the entire spectr ...

These are the three images we will composite together In the following example, we will composite three people into one shot and ...

Masked images placed on background In the above image, I have masked out the images and placed them together on a background. (R ...

Visual Evaluation We are now entering the exciting world of greyscale tonal evaluation, deep inside the channels of our RGB imag ...

Now make a quick, overall visual evaluation of the two images: make a point right in the middle of your curve. If the mid-tones ...

target appear lighter than your current layer, move the midpoint up to lighten the layer and better match your target. Use small ...

Swap over to the blue channel, by either clicking the channel in the Channels palette or using the keyboard shortcut Cmd/Ctrl + ...

Curves adjustments for the green channel You can now revert back to your RGB composite image by selecting the RGB channel in th ...

(From left) “before” and “after” adjustments to figure 2 (From left) “before” and “after” adjustments to figure 3 The registered ...

adjustments. It is very rare that the image will be perfect at this stage, but the images will be more homogeneous and in a bett ...

has the effect of bringing all colors and tones slightly closer together, whilst still retaining their independence and relevanc ...

handy at giving us an initial idea of the direction the dark to light tones we will select should be going in. We are going to s ...

Sample ten colors from your image on the gradient bar Turn on the visibility of the gradient map layer once more. You will prob ...

Before After ...

Tip 3: Black & White Overlay This is a great, quick trick for compositing that is perfect for those times when simply closin ...

The great thing about the Black & White adjustment layer is the amount of control it gives you over the desaturation effect ...

The images above will be composited into one shot with an efficient, non- destructive way of addressing light directionality. Ma ...

Once masked and placed on the background, we can see that the light on the two buildings is coming from opposite directions. We ...