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ImageSourceTypeEnum

ImageSourceTypeEnum enumeration constants are used to define possible sources for input images. This helps determine whether to use special preprocessing techniques.

typedef enum {
 IST_Auto,
 IST_Photo,
 IST_Scan,
 IST_Screenshot,
 IST_SyntheticImage,
 IST_SyntheticText
} ImageSourceTypeEnum;
    

Elements

Name Description
IST_Auto Detect the image origin automatically.
IST_Photo The image is a photo.
IST_Scan The image is a scan.
IST_Screenshot The image is a screenshot.
IST_SyntheticImage The image contains text that is obtained by rasterizing digital fonts. For example, a digitally-born image-only PDF document.
IST_SyntheticText The image contains a text layer. For example, a digitally-born PDF document with a text layer.

Used in

IPrepareImageMode::ImageSourceType

11/7/2025 12:48:30 PM

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