large_trigger_width, large_trigger_height, large_width, large_height -- specify the size of large images This collection of variables is consulted when creating
“large” images. If an image is larger
than large_trigger_width x
large_trigger_height, a large
image is created for you within a bounding box of
large_width x large_height.
The idea of the “large”
images are to add an intermediate step between the
reduced_image_dimensions
and the original image. As things are usually configured, the
reduced images are around 640x480 pixels and many digital cameras
are creating 4-6 megapixel images. The large images exist to
provide something between 640x480 and 2500x2000.