Modifications – Scale

Scale makes an image larger or smaller, either by a scale factor or to a size you give in pixels. Choose the “method” first: scale or dimension.

Set “method” to scale and enter one or two “factors” (x, y). A factor larger than 1.0 makes the image larger; a factor smaller than 1.0 makes it smaller. Factors can be whole or decimal numbers, but must be greater than 0.

• With one factor, the same factor is used horizontally and vertically.
• With two different factors, the output's aspect ratio is different from the input's.

Set “method” to dimension and enter the “size” you want, in pixels (width, height).

• With only one number, the output width and height are equal.
• If the width and height you enter have a different aspect ratio from the input, the image is scaled by different amounts in the two directions.

Scale uses nearest-neighbor scaling by default. Choose bilinear for a noticeably smoother result.

Scale works on byte, integer or floating-point images, and the output is the same type as the input.