TIOParams.RAW_GetExifThumbnail

Declaration

property RAW_GetExifThumbnail: Boolean;

Description

Enable loading of the embedded thumbnail, rather than the full image. A thumbnail is often available for Raw images (EXIF Thumbnail).
If the file does not contain a thumbnail, the full image will be automatically loaded instead.

Note: RAW_GetExifThumbnail is also set by GetThumbnail

Demo

Raw Loading Speed

ImageEn offers four properties to improve loading speed for RAW images:
- RAW_GetExifThumbnail
- RAW_GetEmbeddedJpeg
- RAW_EmbeddedJpegLoading
- RAW_HalfSize

Example usage:

// Load the full size RAW
ImageEnView.IO.Params.RAW_GetExifThumbnail := False;
ImageEnView.IO.Params.RAW_GetEmbeddedJpeg := False;
ImageEnView.IO.Params.RAW_HalfSize := False;

// Load the half size RAW
ImageEnView.IO.Params.RAW_GetExifThumbnail := False;
ImageEnView.IO.Params.RAW_GetEmbeddedJpeg := False;
ImageEnView.IO.Params.RAW_HalfSize := True;

// Load the embedded JPEG (loading a half size raw if there is no embedded JPEG)
ImageEnView.IO.Params.RAW_GetExifThumbnail := False;
ImageEnView.IO.Params.RAW_GetEmbeddedJpeg := True;
ImageEnView.IO.Params.RAW_HalfSize := True;

// Load the thumbnail (will automatically fall back to the embedded JPEG if there is no thumbnail)
ImageEnView.IO.Params.RAW_GetExifThumbnail := True
ImageEnView.IO.Params.RAW_GetEmbeddedJpeg := True;
ImageEnView.IO.Params.RAW_HalfSize := True; // In case there is no EXIF thumbnail or embedded JPEG

Example

// Load only the thumbnail
ImageEnView1.IO.Params.RAW_GetExifThumbnail := True;
ImageEnView1.IO.LoadFromFile('C:\input.crw');

See Also

- GetThumbnail
- OptimizeLoadingParams
- RAW_EmbeddedJpegLoading

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