Added chop to MagickImage.

Author: dlemstra

src/magick-image.ts

@@ -680,6 +680,11 @@ export interface IMagickImage extends IDisposable {
      */
     charcoal(radius: number, sigma: number): void;
 
+    /**
+     * Chop image (remove vertical or horizontal subregion of image) using the specified geometry.
+     */
+    chop(geometry: MagickGeometry): void;
+
     /**
      * A variant of adaptive histogram equalization in which the contrast amplification is limited,
      * so as to reduce this problem of noise amplification.
@@ -2677,6 +2682,15 @@ export class MagickImage extends NativeInstance implements IMagickImage {
         });
     }
 
+    chop(geometry: MagickGeometry): void {
+        this.useException(exception => {
+            geometry._toRectangle(rectangle => {
+                const instance = ImageMagick._api._MagickImage_Chop(this._instance, rectangle, exception.ptr);
+                this._setInstance(instance, exception);
+            });
+        });
+    }
+
     clahe(xTiles: number, yTiles: number, numberBins: number, clipLimit: number): void;
     clahe(xTiles: Percentage, yTiles: Percentage, numberBins: number, clipLimit: number): void;
     clahe(xTiles: number | Percentage, yTiles: number | Percentage, numberBins: number, clipLimit: number): void {

tests/magick-image/chop.spec.ts

@@ -0,0 +1,20 @@
+/*
+  Copyright Dirk Lemstra https://github.com/dlemstra/magick-wasm.
+  Licensed under the Apache License, Version 2.0.
+*/
+
+import { MagickGeometry } from '@src/types/magick-geometry';
+import { TestFiles } from '@test/test-files';
+
+describe('MagickImage#chop', () => {
+    it('should remove part of the image', () => {
+        TestFiles.Images.Builtin.logo.use(image => {
+            image.chop(new MagickGeometry(100, 100, 100, 100));
+
+            expect(image).toHavePixelWithColor(300, 99, '#fff');
+            expect(image).toHavePixelWithColor(300, 100, '#f79868ff');
+            expect(image).toHavePixelWithColor(406, 99, '#333636ff');
+            expect(image).toHavePixelWithColor(406, 100, '#fff');
+        });
+    });
+});