Raster Image Display
LEADTOOLS provides numerous functions to let you take control of your application's image display. With LEADTOOLS, you control brightness and contrast settings, color reduction with dithering and palette control, zooming/scaling/fitting, panning, scrolling, painting with transparency and/or regions. Additionally, LEADTOOLS provides image-list and thumbnail browser controls, a special magnifying-glass feature, as well as an automated pan-window control.
LEADTOOLS renders an image of any color depth (1 to 64 bit) to any display device, automatically handling any color reduction or expansion. Use nearest neighbor (fastest), bilinear (fast-good quality) or bicubic (best quality) resampling for zoomed display of images. Images can be automatically dithered to match the output display device on the fly, without changing the image in memory. Intensity, contrast and gamma correction changes can be applied to the display without affecting the original data. (AdditionalIy, the color reduction and display settings can be rendered into the image: see Image Processing. Images can be scaled, zoomed, or scrolled when displayed. You can render images with a color specified as transparent.
You can position the displayed image, and zoom in or out by scaling and clipping the display. The rotated display feature allows rendering images rotated in 90-degree increments without changing the image in memory. Large 1-bit images can remain compressed in memory while decompressing only the portion needed for display. On a 256-color device, you can use a fixed palette option to eliminate palette shifting when displaying more than one image at a time. An automated pan window is provided to enable navigation on a large image using a small thumbnail view. LEADTOOLS also lets you display and manipulate a list of images as an array of thumbnails using the ImageList Control In addition, LEADTOOLS provides a Thumbnail Browser for browsing entire directories of image files.
Image Display Key Features