TImageEnProc.AdjustLevels
Declaration
procedure AdjustLevels(Shadow: integer; MidTone: integer; Highlight: integer; OutShadow: integer; OutHighlight: integer);Description
Perform level adjustment with midtone.Note:
◼ Null values (causing no change) would be: AdjustLevels( 0, 128, 255, 0, 255 );
◼ A UI for this is available to your users in the Image Processing dialog
◼ If the image PixelFormat is not ie24RGB or ie32RGB, it will be converted
| Parameter | Description |
|---|---|
| Shadow | Low input value (0-255) |
| MidTone | Midtone input value (0-255, 128 = linear adjustment) |
| Highlight | High input value (0-255) |
| OutShadow | Low output value (0-255) |
| OutHighlight | High output value (0-255) |
Demo
 | Demos\ImageEditing\EveryMethod\EveryMethod.dpr |
Example
// Load test imageImageEnView1.IO.LoadFromFile( 'D:\TestImage.jpg' );
// Shift the midpoint of the image to brighten it
ImageEnView1.Proc.AdjustLevels( 0, 102, 201, 0, 255 );
