Image Adjust the exposure by averaging all pixels of an image. Region Select the region by clicking and dragging. The enclosed pixels will be averaged and the resulting value used to determine the appropriate exposure. If the image has a washed-out or brightly lit window and a room s interior, the window may be selected for exposing. The resulting new image will be of a dimmer interior and a window which seems less bright.
Point select a point on the image with the cursor.
The image will be adjusted with the selected point as the exposure set point. Rotate Rotate the current image either per 90 degrees clockwise, or per 180 degrees. Flip Flip the current image horizontally or vertically. This menu offers image operations that are specific to the type of images that Radiance produces. Note that The functions available under the analysis menu result in new images which lose the real-world luminance and illuminance values, i.e. they become unsuitable for further manipulations under the analysis menu.