ImageEn, unit imageenproc |
|
TImageEnProc.Resample
Declaration
procedure Resample(NewWidth, NewHeight: Integer; FilterType: TResampleFilter = rfNone; bMaintainAspectRatio : Boolean = False); overload;
procedure Resample(ScaleBy: Double; FilterType: TResampleFilter = rfNone); overload;
Description
Resizes the current image. Unlike
ImageResize, the content of the image will change (i.e. it is stretched to the new size).
Parameter | Description |
NewWidth | New image width in pixels. If NewWidth is -1 then it is calculated automatically, respecting the proportions. |
NewHeight | New image height in pixels. If NewHeight is -1 then it is calculated automatically, respecting the proportions. |
FilterType | Resampling interpolation algorithm. |
bMaintainAspectRatio | Automatically reduces NewWidth or NewHeight to ensure the original proportions of the image are maintained |
Note: This function is also available to the user in the
Image Processing dialogExamples
ImageEnView1.Proc.Resample(50, -1, rfNone); // Resize the image to width of 50 (with height automatically set) without any smoothing algorithm
ImageEnView1.Proc.Resample(-1, 100, rfLanczos3); // Resize the image to height of 100 (with width automatically calculated) and high quality smoothing
ImageEnView1.Proc.Resample(100, 100, rfLanczos3, True); // Resize the image so that it is no higher or wider than 100, but maintains the original aspect ratio (e.g. a 4:3 portrait image would have the new dimensions 100 x 75)
ImageEnView1.Proc.Resample( 0.5, rfFastLinear ); // Resize the image to half its current size with fast, but good quality smoothing
See Also
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ResampleTo