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Using the Apply Image command

    The Apply Image command lets you blend one image's layer and channel (the source) with a layer and channel of the active image (the destination).

To use the Apply Image command:

  1. Open the source and destination images, and select the desired layer and channel in the destination image. The pixel dimensions of the images must match for image names to appear in the Apply Image dialog box.
  2. Note: If the color modes of the two images differ (for example, one image is RGB and the other is CMYK), you can copy a single channel to another channel between images, but you cannot copy a composite channel to a composite channel in another image.

  3. Choose Image > Apply Image.
  4. Choose the source image, layer, and channel you want to combine with the destination. To use all layers in the source image, select Merged for Layer.
  5. Select Preview to preview the results in the image window.
  6. Select Invert to use the negative of the channel contents in the calculation.
  7. For Blending, choose a blending option.
  8. For information on the Add and Subtract options, see About the Add and Subtract blending modes. For information on other blending options, see Selecting a blending mode.

  9. Enter an opacity to specify the effect's strength.
  10. Select Preserve Transparency to apply the results only to opaque areas in the result layer.
  11. Select Mask if you want to apply the blending through a mask. Then choose the image and layer containing the mask. For Channel, you can choose any color or alpha channel to use as the mask. You can also use a mask based on the active selection or the boundaries of the chosen layer (Transparency). Select Invert to reverse the masked and unmasked areas of the channel. (See Using channel calculations to blend layers and channels (Photoshop).)