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• ImageHelper

C# Class VietOCR.NET.Utilities.ImageHelper

Show file Open project: nguyenq/VietOCR3.NET

Public Methods

Method	Description
AutoCrop ( Bitmap source, double tolerance ) : Bitmap	Autocrops an image.
Brighten ( Image bmp, float value ) : Image	Brightens an image.
CloneImage ( Bitmap bmp ) : Bitmap	Clones a bitmap using DrawImage.
Contrast ( Image bmp, float value ) : Image	Constrasts an image. http://bobpowell.net/image_contrast.aspx
ConvertGrayscale ( Image input ) : Image	Converts an image to 8bpp indexed grayscale. http://www.codeproject.com/Articles/70442/C-RGB-to-Palette-Based-bit-Greyscale-Bitmap-Clas
ConvertMonochrome ( Bitmap img ) : Bitmap	Converts an image to monochrome. http://bobpowell.net/onebit.aspx
Crop ( Image image, Rectangle cropArea ) : Image	Crops an image.
GaussianBlur ( Bitmap sourceBitmap ) : Bitmap
GetClipboardImage ( ) : Image	Gets an Image from Clipboard.
InvertColor ( Bitmap img ) : Bitmap	Inverts color of an image. http://mariusbancila.ro/blog/2009/11/13/using-colormatrix-for-creating-negative-image/
RemoveLines ( Bitmap image ) : Bitmap	Remove lines or borders using Leptonica library.
Rescale ( Image image, int dpiX, int dpiY ) : Image	Rescales an image.
Rotate ( Image image, double angle ) : Bitmap	Rotates an image.
Sharpen ( Bitmap image ) : Bitmap	Sharpens an image. http://stackoverflow.com/questions/903632/sharpen-on-a-bitmap-using-c-sharp

Protected Methods

Method	Description
SetIndexedPixel ( int x, int y, BitmapData bmd, bool pixel ) : void

Private Methods

Method	Description
ConvolutionFilter ( Bitmap sourceBitmap, double filterMatrix, double factor = 1, int bias ) : Bitmap	http://softwarebydefault.com/2013/06/09/image-blur-filters/
colorWithinTolerance ( Color a, Color b, double tolerance ) : bool	Determines color distance. http://stackoverflow.com/questions/10678015/how-to-auto-crop-an-image-white-border-in-java

Method Details