SBSDKImageFilterType

enum SBSDKImageFilterType {}

The ScanbotSDK image filter types.

  • Passthrough filter. Does not alter the image.

    Declaration

    Objective-C

    SBSDKImageFilterTypeNone = 0
  • Optimizes colors, contrast and brightness. Usecase: photos.

    Declaration

    Objective-C

    SBSDKImageFilterTypeColor = 1
  • Standard grayscale filter. Creates a grayscaled 8-bit image.

    Declaration

    Objective-C

    SBSDKImageFilterTypeGray = 2
  • Standard binarization filter with contrast optimization. Creates a grayscaled 8-bit image with mostly black or white pixels. Usecase: Preparation for optical character recognition.

    Declaration

    Objective-C

    SBSDKImageFilterTypeBinarized = 3
  • Fixes white-balance and cleans up the background. Usecase: images of paper documents.

    Declaration

    Objective-C

    SBSDKImageFilterTypeColorDocument = 4
  • A filter for binarizing an image. Creates an 8-bit image with pixel values set to eiter 0 or 255. Usecase: Preparation for optical character recognition.

    Declaration

    Objective-C

    SBSDKImageFilterTypePureBinarized = 11
  • Cleans up the background and tries to preserve photos within the image. Usecase: magazine pages, flyers.

    Declaration

    Objective-C

    SBSDKImageFilterTypeBackgroundClean = 13
  • Black and white filter with background cleaning. Creates a grayscaled 8-bit image with mostly black or white pixels. Usecase: Textual documents or documents with black and white illustrations.

    Declaration

    Objective-C

    SBSDKImageFilterTypeBlackAndWhite = 14
  • A filter for black and white conversion using OTSU binarization.

    Declaration

    Objective-C

    SBSDKImageFilterTypeOtsuBinarization = 15
  • A filter for black and white conversion primary used for low-contrast documents.

    Declaration

    Objective-C

    SBSDKImageFilterTypeDeepBinarization = 16
  • A filter that enhances edges in low-contrast documents.

    Declaration

    Objective-C

    SBSDKImageFilterTypeEdgeHighlight = 17
  • Binarization filter primary inteded to use on low-contrast documents with heavy shadows.

    Declaration

    Objective-C

    SBSDKImageFilterTypeLowLightBinarization = 18
  • Binarization filter primary intended to use on low-contrast documents with heavy shadows.

    Declaration

    Objective-C

    SBSDKImageFilterTypeLowLightBinarization2 = 19