Inspecting Images

Single Image Inspector

The upper left panel shows the pixel value histogram where the range of pixel value can be changed by putting values in the text boxes below and press return. Vertical bars with a small square show the range of display; the one with an open square and a filled square correspond to white (255) and black (0) respectively. Grab the square to move the location. If the filled one is set higher than the open one, then the black and white is inverted.

Bottom two figures shows column and line profile. You can change the column by moving the mouse around on the screen with the ⌘key pressed.

Upper right text box shows statistics of pixels in a defined rectangle. The rectangle location is also changed by the mouse move with the ⌘ key. The size of the square can be specifiled in the text field there. The unit is in pixel (default: 50).

Mosaic Image Inspector

While you read files as mosaic, the inspector panel looks like this. Only the pixel display level adjustment is available. One of the CCD image is selected to show on the right to see the adjustment effect. If you want to select a particular CCD, put the mouse on it and press ⌘-A