Image File Functions
- Read images from files or memory.
- Write image to files or memory.
- Supports user-defined input and output managers - the ultimate in I/O flexibility
- Optionally read and write most supported image file formats one line-at-a-time.
- Read to a DIB in one function call
- Get image dimensions and bit-depth from image files
- Progress / cancel callback option provided for most file I/O routines and image processing options.
- Supports JPG, GIF, BMP, TIFF, PhotoCD, Photoshop, WBMP, PNG, PCX, PAX, TLA, WMF, EMF, APM, PPM, PGM, PBM and TGA
- JPG, PNG, PAX and TLA comment support
- Multi-page TIFF I/O capabilities
- Animated GIF I/O capabilities
- JPEG_APPx marker support
- Read EXIF data from JPGs and TIFFs
- Write EXIF data to JPG
- Read and write ICC profile data from JPG, PNG, TIFF
- Read and write IPTC data from JPG, TIFF
- Lossless JPG transformations
- Read/write 1-bit G3/G4 (FAX) TIFFs
- Custom memory allocation callbacks for image file reading
- Much more...
Windows Bitmap Functions
- Generate HBITMAPs from RGB buffers
- Generate RGB buffers from HBITMAPs
- Generate 8-bit and RGB buffers from DIBs
- Generate DIBs from RGB, 8 or 1-bit images
- Draw HBITMAP, DIB, RGB, RGBA or 8-bit images to an HDC in one call
- Capture DCs to RGB buffers in one call
- Draw transparent HBITMAP or RGBA or RGB images
- Much more...
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Image Processing Functions
- Resize an image to any size
- Apply an arbitrary convolution matrix to an image
- Sharpen, blur and unsharp mask an image
- Rotate an image, any angle
- Detect image rotation (deskew) angle
- Adaptive thresholding for converting grayscale to monochrome
- Polygon and ellipse fill, flood fill or draw lines onto images
- Apply a look up table (LUT) to an image
- Generate grayscale images from RGB images
- Generate 8-bit colormapped images from 24-bit RGB or 32-bit RGBA images (color quantize)
- Convert between 24-bit and 8-bit images
- Using any palette, generate an 8-bit image from an RGB image
- Convert between 16-bit per component and 8-bit per component
- Modify brightness / contrast / saturation of an image
- Automagic brightness correction
- Automagic image border detection
- Automatic dust and scratch removal
- Emboss images
- Polygon warp and point to point warp functions
- FFT and morphological operations
- Despeckle grayscale and RGB images
- Histogram stretch / equalization
- Many alpha blending and image compositing/overlay functions
- Crop images
- Vertically and horizontally flip buffers
- Count colors in RGB images
- Draw smoothed text onto images
- Replace a color in an RGB image
- Many of these functions can be used with 16-bit per component data
- Much more...
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