| # Histogram window

Index Main window: Viewer mode Save mode Copy mode Fax mode Mail mode Gimp plugin Color correction: Gamma correction Brightness Contrast Threshold RGB default Negative Autoenhancement Default Restore Store Histogram window Pipette functions Standard options window Advanced options window Preview: Pipette white Pipette gray Pipette black Unzoom Zoom out Zoom in Undo zoom Autoselect scanarea Autoraise scanarea Select visible area Delete preview cache Preset area Rotation Aspect ratio RGB values Select scanarea Move scanarea Batch scan: Empty batch list Open batch list Save batch list Add area to list Remove selection Rename selection Rotate image Mirror image Setup: Copy setup Display setup Enhancement setup Fax setup Image setup Mail setup Saving setup | The histogram shows the color density of the area that is selected in the preview window. The top histogram represents the scanned raw image, the bottom histogram represents the enhanced image. In grayscale mode, there are three sliders in the gray range. The black slider defines the black point, the white silder the white point and the gray slider the gray point (gamma). If the rgb default button (in the xsane main window) is not selected in color mode there are also sliders in the red, the green and the blue range. In this case a move of a slider of the gray range also moves the sliders of the color ranges. The I, R, G and B buttons define if the intensity, red, green and/or blue histogram components are shown. The curve-type button defines if the histogram curves are shown with pixels or with lines. The LOG button defines if the densities are displayed linear or logarithmical.

> Author: Oliver Rauch