TImageEnProc.WhiteBalance_AutoWhite

Declaration

procedure WhiteBalance_AutoWhite();

Description

Shift image colors by adjusting the white range.
This method is similar to WhiteBalance_WhiteAt, but attempts to automatically detect the white value.

Note:
◼ A UI for this is available to your users in the Image Processing dialog
◼ If the image PixelFormat is not ie24RGB, it will be converted

Demos

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

ImageEnView1.Proc.WhiteBalance_AutoWhite();

See Also

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