editor › Globals › ImageUtils

Class: ImageUtils

Hierarchy

• ImageUtils

Index

Methods

• _cropParamsForPicture
• cropAndResize
• roundImageBuffer

Methods

Static Private _cropParamsForPicture

▸ _cropParamsForPicture(image: Jimp, aspectRatio: number): object

Defined in src/util/ImageUtils.ts:47

Calculates the top left corner plus width and height of the crop window needed to crop the given image to the given aspect ratio.

Parameters:

Name	Type	Description
image	Jimp	Jimp image to crop
aspectRatio	number	Aspect ratio as number width/height

Returns: object

Object with topLeftX, topLeftY, width and height

• height: number

• topLeftX: number

• topLeftY: number

• width: number

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Static cropAndResize

▸ cropAndResize(image: Jimp, aspectRatio: number, newWidth: number): Promise‹Blob›

Defined in src/util/ImageUtils.ts:30

Crops a given image to the given aspect ratio (centered, preserving smaller dimension) and resizes it to the given width.

Parameters:

Name	Type	Description
image	Jimp	Jimp image to crop
aspectRatio	number	Aspect ratio as number width/height
newWidth	number	Desired width of the resulting image in px

Returns: Promise‹Blob›

Promise to a Blob with the resulting image and mimetype "image/jpeg"

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Static roundImageBuffer

▸ roundImageBuffer(imageBuffer: ArrayBuffer, maskBuffer?: ArrayBuffer): Promise‹ArrayBuffer›

Defined in src/util/ImageUtils.ts:6

Parameters:

Name	Type
imageBuffer	ArrayBuffer
maskBuffer?	ArrayBuffer

Returns: Promise‹ArrayBuffer›