TImageEnProc.WhiteBalance_WhiteAt

Declaration

procedure WhiteBalance_WhiteAt(WhiteX, WhiteY: Integer);

Description

Shift image colors by adjusting the white range (based on the white of the pixel at the coordinate WhiteX, WhiteY).

Note: If the image PixelFormat is not ie24RGB, it will be converted

Demo

Comparison of White-Balance Methods

// Load test image
ImageEnView1.IO.LoadFromFile( 'D:\TestImage.jpg' );

  


// WhiteBalance_AutoWhite
// Shift image colors by adjusting the white range
ImageEnView1.Proc.WhiteBalance_AutoWhite();

  


// WhiteBalance_Coef
// Decrease red level by 0.8
ImageEnView1.Proc.WhiteBalance_Coef( 0.8, 1, 1 );

  


// WhiteBalance_GrayWorld
// Adjust image colors by applying the white balance algorithm "Gray World"
ImageEnView1.Proc.WhiteBalance_GrayWorld();

  


// WhiteBalance_WhiteAt
// Shift image colors by adjusting the white range (based on the white of the pixel at the center of the image).
ImageEnView1.Proc.WhiteBalance_WhiteAt( ImageEnView1.IEBitmap.Width div 2, ImageEnView1.IEBitmap.Height div 2 );

  

Example

// Specify the white pixel to perform the white balance adjustment
ImageEnView1.Proc.WhiteBalance_WhiteAt( 150, 200 );

See Also

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