TImageEnMView.ThumbnailResampleFilter
Declaration
property ThumbnailResampleFilter: TResampleFilter;
Description
Specifies the filter to use when thumbnails are generated (when assigning images to a TImageEnMView and
StoreType = ietThumb). Filters improve the quality of the thumbnail, but can slow down the application.
A value of
rfNone provides no quality enhancement. Filters such as
rfLanczos3 provide excellent quality, but are slower.
rfFastLinear provides a good balance of quality and speed.
Default: rfFastLinear (improve quality with negligible speed impact)
Note:
◼Unlike
ThumbnailDisplayFilter, ThumbnailResampleFilter is only used once for each image (when it first assigned/loaded)
◼Only used when
StoreType = ietThumb
// insert image 1.jpg and 2.jpg. Only 1.jpg will be filtered.
ImageEnMView1.ThumbnailResampleFilter := rfBSpline;
Idx := ImageEnMView1.AppendImage;
ImageEnMView1.SetImageFromFile('1.jpg');
ImageEnMView1.ThumbnailResampleFilter := rfNone;
Idx := ImageEnMView1.AppendImage;
ImageEnMView1.SetImageFromFile('2.jpg');