This screen is used to resize an image optionally applying a filter.
To maintain the aspect ratio of the image ensure that the check box remains ticked.
When an image is made smaller the appearance may become distorted due to the dropping of pixels. A filter can be used to reduce this distortion. The best filter to use for camera images is Lanczos3 which is set as the default.
Set the height and width to the size you require. If the aspect ratio check box is ticked it is only necessary to change one of these settings as the other one will be automatically adjusted as you enter the new height or width.
Click on the button to close this screen and resize the image.