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Learn Photography

Photomontage >

4.3 – Using GIMP >

Exposure & Contrast

1 – Mac Students

When you see Ctrl in the tutorial, use the Cmd key instead.

2 – Exposure & Contrast

As needed, adjust the exposure and contrast of each layer.

Top Layer, Your Photograph #2

1) Check to make sure the top layer, photograph #2, is the active layer.

2) At the top of your screen, go to Colors > Levels.

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3) Adjust the three sliders below the histogram.

4) Click OK at the bottom of the window.

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Bottom Layer, Your Photograph #1

The top layer, your photograph #2, is blocking the layer below.

When you adjust the bottom layer, your photograph #1, you won't see any changes to that layer.

You must hide, turn off, the top layer, your photograph #2.

5) Click the eye icon on the left side of the top layer, to hide the layer.

The eye icon disappears.

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You can now see the bottom layer, your photograph #1, in the work area.

6) Click the bottom layer, your photograph #1.

It's now the active layer.

7) At the top of your screen, go to Colors > Levels.

8) Adjust the three sliders below the histogram.

9) Click OK at the bottom of the window.

10) On the top layer, your photograph #2, click the empty eyeball-icon box.

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The eye icon reappears.

The layer is visible.