io.scanbot.sdk.process

Enum ImageFilterType

public enum ImageFilterType

Image filter types.

Enum Constant Detail

NONE

public static ImageFilterType NONE

Passthrough filter. Does not alter the image.

COLOR_ENHANCED

public static ImageFilterType COLOR_ENHANCED

Optimizes colors, contrast and brightness. Usecase: photos.

GRAYSCALE

public static ImageFilterType GRAYSCALE

Standard grayscale filter. Creates a grayscaled 8-bit image.

BINARIZED

public static ImageFilterType BINARIZED

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

COLOR_DOCUMENT

public static ImageFilterType COLOR_DOCUMENT

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

PURE_BINARIZED

public static ImageFilterType PURE_BINARIZED

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.

BACKGROUND_CLEAN

public static ImageFilterType BACKGROUND_CLEAN

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

BLACK_AND_WHITE

public static ImageFilterType BLACK_AND_WHITE

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.

OTSU_BINARIZATION

public static ImageFilterType OTSU_BINARIZATION

A filter for black and white conversion using OTSU binarization.

DEEP_BINARIZATION

public static ImageFilterType DEEP_BINARIZATION

A filter for black and white conversion primary used for low-contrast documents.

EDGE_HIGHLIGHT

public static ImageFilterType EDGE_HIGHLIGHT

A filter that enhances edges in low-contrast documents.

LOW_LIGHT_BINARIZATION

public static ImageFilterType LOW_LIGHT_BINARIZATION

Binarization filter primary intended to use on low-contrast documents with heavy shadows.

LOW_LIGHT_BINARIZATION_2

public static ImageFilterType LOW_LIGHT_BINARIZATION_2

Binarization filter primary intended to use on low-contrast documents with heavy shadows.

SENSITIVE_BINARIZATION

public static ImageFilterType SENSITIVE_BINARIZATION

Binarization filter for poor quality printed papers.

Field Detail

Companion

public static io.scanbot.sdk.process.ImageFilterType.Companion Companion

Method Detail

getCode

public int getCode()

Returns:

Integer value that represents an internal (native) SDK value of an image filter (currently based on ContourDetector values).

getFilterName

@NotNull
public java.lang.String getFilterName()

Returns:

An unique name of enum ImageFilterType which doesn't depends on the instance name (e.g. used as filename postfix, etc).

getByCode

@JvmStatic
 @NotNull
public static ImageFilterType getByCode(int code)

Parameters:

code -

Returns:

enum ImageFilterType corresponding to the given code

Throws:

IllegalStateException - if no enum ImageFilterType was found for a given code

getBinarizationFilters

@JvmStatic
 @NotNull
public static java.util.List<io.scanbot.sdk.process.ImageFilterType> getBinarizationFilters()