ImageManager

The ImageManager class is a utility class for managing and manipulating images. It provides functionality for saving images to files and drawing various shapes on images.

Definition

Namespace: Dynamsoft.Utility.Maui

Assembly: Dynamsoft.Utility.Maui

class ImageManager

Methods

Method	Description
`SaveToFile`	Saves an image to the specified path and format.
`DrawOnImage`	Add quadrilaterals on the image.

saveToFile

Saves an image to the specified path and format. The desired file format is inferred from the file extension provided in the path parameter.

public void SaveToFile(ImageData imageData, String path, bool overWrite);

Parameters

[in] imageData: The image to be saved, of type ImageData.

[in] path: The file path, name and extension name, as a string, under which the image will be saved.

[in] overWrite: A flag indicating whether to overwrite the file if it already exists. Defaults to true.

Exception

Error Code	Value	Description
EC_NULL_POINTER	-10002	The ImageData object is null.
EC_FILE_TYPE_NOT_SUPPORTED	-10006	The file type is not supported.
EC_FILE_ALREADY_EXISTS	-10067	The file already exists but overwriting is disabled.
EC_CREATE_FILE_FAILED	-10068	The file path does not exist but cannot be created, or the file cannot be created for any other reason.
EC_IMGAE_DATA_INVALID	-10069	The input ImageData object contains invalid parameter(s).

Return Value

A boolean value that indicates whether the file is saved successfully.

DrawOnImage

Add quadrilaterals on the image.

ImageData DrawOnImage(ImageData imageData, Quadrilateral[] quads, int colour, int thickness);

Parameters

[in] imageData: The ImageData to modify.

[in] quads: An array of Quadrilateral objects to be added on the image.

[in] colour: An int value as an ARGB colour.

[in] thickness: The width of the border.

Return Value

The modified ImageData.