Abstract: A system and method of enhancing dynamic range in images is disclosed that increases the contrast in the resulting image without requiring an increase in the dynamic range of the analog-to-digital converter used to convert the analog image signals to digital information. The system and method disclosed achieve this advantageous result by providing per-pixel gain control circuitry and per-pixel gain selection circuitry. The analog image signal range is segmented into a number (N) of multiple levels, where N is selected to be the desired level of enhancement. Multiple analog gain (G1) levels and multiple digital gain (G2) levels are also provided. The analog gain (G1) is selected for each image pixel based upon the segment in which that pixel falls so that the signal levels may be increased for each segment to utilize the full range (R) of the analog-to-digital converter.

Abstract: A method and system for reviewing and navigating through images displayed on an image capture unit is provided. A method and system includes displaying images in a predetermined number of group types. Each of the group types indicates a number of images to be displayed at a time. The number of images displayed at a time being a page of images. The method includes selecting one group type from the predetermined number of group types and navigating through a plurality of images within the group type through the use of a highlighting area surrounding an image to be selected. Finally, the method and system includes selecting a particular image within the group type based upon the highlighted area. In one aspect, the method and system includes a four-way button to facilitate ease of movement between an image or cell and between pages of images. It also includes a mode button which allows for movement between group types and a view button to facilitate selection of a particular image.