Crop limit and blurred backdrop

The uniform grid cuts every photo to one shape. When a photo would lose more than the crop limit (30 percent by default) it is shown whole instead. The loss is 1 minus the smaller of the two aspect ratios divided by the larger. The same six photos, three landscape and three portrait, are used in every gallery below.

Three columns at 3:2. Portraits lose more than half of the picture, so heads and tails are cut off.

Same grid. Portraits pass the 30 percent limit, so they are shown whole over a blurred, enlarged copy of themselves. Landscapes still fill their cell.

Same grid, with a plain backdrop instead of the blur.

At 1:1 a 3:2 photo loses a third of its width, which is over the 30 percent limit, so every photo is shown whole on a backdrop.

Same photos and cells. A third is now under the limit, so every photo is cropped to the square.