Image Processing

LEADTOOLS has over 200 image processing functions, some of which are typically found only in high performance end-user programs such as PhotoShop. The image processing functions are separated into four categories:

 

Transforms: LEADTOOLS transforms include resize, resample (interpolated resize), rotate (.01 degree), flip, invert, reverse, crop, underlay, shear, transpose, fill, auto deskew and combine bitmap (using your choice of mathematical and Boolean operations).

Filters: LEADTOOLS color filters include sharpen, blur, intensity, contrast, gamma correct, invert, hue and saturation, histogram equalize, emboss, mosaic, posterize, median, average, oilify, edge enhance, solarize, despeckle, and add noise. LEADTOOLS spatial filters (which can be pre-defined or user-defined) include gradient, laplacian, sobel, prewitt, shift and difference, line segment. LEADTOOLS binary filters include erosion, dilation, max and min.

Drawing: With the LEAD DeviceContext, LEADTOOLS gives you access to the bitmap surface, on which you can draw or paint using Microsoft Windows GDI functions (such as TextOut, BitBlt, Ellipse, and Rectangle). Alternatively, the .NET interface allows you to create a GDI+ Graphics object from a LEAD bitmap for drawing.

Region of Interest: The LEADTOOLS region of interest makes it possible for you to process or paint only a specific portion of an image rather than the entire image. Regions can be comprised of any combination of rectangles, ellipses, rounded-rectangles, freehand shapes, polygons, transparent color and more.

 

Most of the LEADTOOLS functions that change the appearance of an image act on the bitmap (not just the display). This is an important distinction, because the changes become permanent when the bitmap is saved to a file.

To change the appearance of the image in a bitmap, you can do the following:

Adjust colors and intensities as follows:

Apply filters to do the following:

Use low-level functions to change parts of an image as follows:

These features are included with:

LEADTOOLS Imaging

LEADTOOLS Imaging Pro

LEADTOOLS Vector Imaging Pro

LEADTOOLS Document Imaging

LEADTOOLS Recognition

LEADTOOLS Document Imaging Suite

LEADTOOLS Medical Imaging

LEADTOOLS PACS Imaging

LEADTOOLS Medical Imaging Suite