ImageProcessor

The class ImageProcessor is a utility class for managing the image data. It provides functionality for saving images to files and reading images from files.

Definition

Namespace: com.dynamsoft.utility

Assembly: DynamsoftCaptureVisionBundle.aar

class ImageProcessor

Methods

cropImage(imageData,rect)

Crops an image based on the provided rectangle.

ImageData cropImage(ImageData imageData, Rect rect) throws UtilityException{}

Parameters

[in] imageData: The ImageData to modify.

[in] rect: The Rect to crop the image.

Return Value

The cropped ImageData.

cropAndDeskewImage(imageData,quad,dstWidth,dstHeight,padding,errorCode)

Crops and deskews an image based on the provided quadrilateral and additional information.

public ImageData cropAndDeskewImage(ImageData imageData, Quadrilateral quad, int dstWidth, int dstHeight, int padding) throws UtilityException{}

cropAndDeskewImage(imageData,quad)

Crops and deskews an image based on the provided quadrilateral. The arguments dstWidth, dstHeight, and padding are set to 0.

public ImageData cropAndDeskewImage(ImageData imageData, Quadrilateral quad) throws UtilityException{}

adjustBrightness

Adjusts the brightness of an image.

ImageData adjustBrightness(ImageData imageData, @IntRange(from = -100, to = 100) int brightness){}

Parameters

[in] imageData: The ImageData to modify.

[in] brightness: The amount to adjust the brightness by.

Return Value

The modified ImageData.

adjustContrast

Adjusts the contrast of an image.

ImageData adjustContrast(ImageData imageData, @IntRange(from = -100, to = 100) int contrast){}

Parameters

[in] imageData: The ImageData to modify.

[in] contrast: The amount to adjust the contrast by.

Return Value

The modified ImageData.

filterImage

Applies a filter to an image.

ImageData filterImage(ImageData imageData, @EnumFilterType int filterType){}

Parameters

[in] imageData: The ImageData to modify.

[in] filterType: The type of filter to apply.

Return Value

The modified ImageData.

convertToGray(imageData)

Converts an image to grayscale.

ImageData convertToGray(ImageData imageData){}

Parameters

[in] imageData: The ImageData to modify.

Return Value

The converted grayscale ImageData.

convertToGray(imageData,r,g,b)

Converts an image to grayscale.

ImageData convertToGray(ImageData imageData, @FloatRange(from = 0, to = 1) float r, @FloatRange(from = 0, to = 1) float g, @FloatRange(from = 0, to = 1) float b){}

Parameters

[in] imageData: The ImageData to modify.

[in] r: The weight for the red channel.

[in] g: The weight for the green channel.

[in] b: The weight for the blue channel.

Return Value

The converted grayscale ImageData.

convertToBinaryGlobal(imageData)

Converts an image to binary using a global threshold.

ImageData convertToBinaryGlobal(ImageData imageData){}

Parameters

[in] imageData: The ImageData to modify.

Return Value

The converted binary ImageData.

convertToBinaryGlobal(imageData,threshold,invert)

Converts an image to binary using a global threshold.

ImageData convertToBinaryGlobal(ImageData imageData, @IntRange(from = -1, to = 255) int threshold, boolean invert){}

Parameters

[in] imageData: The ImageData to modify.

[in] threshold: The threshold value.

[in] invert: Whether to invert the binary image.

Return Value

The converted binary ImageData.

convertToBinaryLocal(imageData)

Converts an image to binary using a local threshold.

ImageData convertToBinaryLocal(ImageData imageData){}

Parameters

[in] imageData: The ImageData to modify.

Return Value

The converted binary ImageData.

convertToBinaryLocal(imageData,blockSize,compensation,invert)

Converts an image to binary using a local threshold.

ImageData convertToBinaryLocal(ImageData imageData, int blockSize, int compensation, boolean invert){}

Parameters

[in] imageData: The ImageData to modify.

[in] blockSize: The block size for local thresholding.

[in] compensation: The compensation value for local thresholding.

[in] invert: Whether to invert the binary image.

Return Value

The converted binary ImageData.