When I crop an image (using the Crop Tab in PTGui), the image appears to be enlarged in the Panorama Editor. Why?
When the Crop Tab is used to crop an image, the field of view value (on the Lens Parameters tab) is the field of view of the cropped portion of the image (and not the field of view of the original image). Since cropping does not alter the field of view of the visible part of the image, the cropped portion of the image will take the same space in the panorama as would the uncropped image. So cropping effectively zooms into part of the image. The Crop Tab is intended to be used for lenses that use only part of the film/ccd plane, or for scanned images, where the scanned area is larger than the actual image. Generally, all images in a project should have the same crop size, unless individual lens parameters are used for the cropped image(s). If your goal is to exclude certain unwanted parts of a source image from the panorama, don’t use the Crop Tab. Instead, stitch the panorama to a layered format, and use an image editing program such as Photoshop to hide the unwanted parts, after stitc
