TImageEnView.ChangeResolution

Declaration

procedure ChangeResolution(NewDPI: Integer; ResampleFilter: TResampleFilter);

Description

Modifies the DPI of the image (IO.Params.DpiX and IO.Params.DpiY), resampling it and setting the new DPI values.

Note: You should ensure the source DPI contains valid values before calling ChangeResolution. This method has no effect if DPI is 0.

Example

// load input.jpg which has 100 dpi
ImageEnView1.IO.LoadFromFile('C:\input.jpg');
// we want 75 dpi
ImageEnView1.ChangeResolution(75, rfTriangle);
// save back as 75 dpi
ImageEnView1.IO.SaveToFile('C:\output.jpg');

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