Comparing and Rating Images

For those really tough decisions, Aperture allows you to compare and rate a Select image against close alternates. This is particularly useful when you are trying to choose an image from a small group of similarly composed images.

For example, choosing the best image from a series of head shots can be difficult. Even in head shots captured within a short time span, the facial expressions of the subject can change ever so slightly. By comparing images side by side and rating them, you can more easily choose among like images.

To compare and rate images
  1. Make sure the Browser and Viewer are showing.

  2. In the Browser, select the image that appears to be the best.

  3. To set this image as the “compare” image, choose View > Main Viewer > Compare (or press Option-O).

    The compare image appears in the Viewer and the Browser with a green border. The next selected image appears with a white border immediately to the right of the compare image. If you want to view another image against the compare image, simply select it. The alternate image you selected appears to the right of the compare image in the Viewer.

    Figure. Viewer showing a compare image on the left with a green border and an alternate image on the right with a white border.

    If you have a second display and want to view each image on a different display, choose View > Secondary Viewer > Span (or press Option-S).

  4. Rate your compare image by doing one of the following:

    • To assign the Select rating: Press Option-Backslash (\).
    • To increase the compare image’s rating: Press Option–Equal Sign (=).
    • To decrease the compare image’s rating: Press Option-Hyphen (-).

    The rating appears as an overlay on the compare image.

  5. Rate the alternate image by doing one of the following:

    • To assign the Select rating: Press Backslash (\).
    • To increase the image’s rating: Press Equal Sign (=).
    • To decrease the image’s rating: Press Hyphen (-).
    • To assign the Reject rating: Press 9.

    The rating appears as an overlay on the alternate image.

  6. Navigate to the next alternate by pressing the Left Arrow or Right Arrow key or by clicking the Move Selection Left or Move Selection Right button in the control bar.

    Figure. Viewer showing the compare image on the left and a new alternate on the right.

    If you discover that the new selection is a better choice or has the best rating, you can make it the compare image by pressing Return or choosing Edit > Set Compare Item. You can then review and compare your alternates against this image to confirm it as the best image.

Tip: To quickly turn off the comparison feature, press Command-Return.