Image quality analysis

If the images in the list are not equally sharp, you can use the "Analysis" tab to analyze the quality (or sharpness) of each image.
Select the "Analyze" tab, the analyzis tools are displayed.

Select an analyzis square side, or the entire planet, just wide enough to enclose a typical part of the image, and drag the red square on that part.

Select an analysis method with the "Method" popup, for now, we will choose the "Entropy" method as it is the best for planetary images.

Press the "Analyze" button ; when the analysis is done for an image, its estimated quality level is displayed as a number in the "Quality" column of the list frame.
Depending on the kind of image, the method and the and the settings, the estimated quality may be not relevant.

When all the images are analyzed, you can automatically select which images to include in the result, based on their quality.