init - 初始化项目

modules/imgcodecs/misc/java/test/ImgcodecsTest.java

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+package org.opencv.test.imgcodecs;
+
+import org.opencv.core.MatOfByte;
+import org.opencv.core.MatOfInt;
+import org.opencv.imgcodecs.Imgcodecs;
+import org.opencv.test.OpenCVTestCase;
+import org.opencv.test.OpenCVTestRunner;
+
+public class ImgcodecsTest extends OpenCVTestCase {
+
+    public void testImdecode() {
+        fail("Not yet implemented");
+    }
+
+    public void testImencodeStringMatListOfByte() {
+        MatOfByte buff = new MatOfByte();
+        assertEquals(0, buff.total());
+        assertTrue( Imgcodecs.imencode(".jpg", gray127, buff) );
+        assertFalse(0 == buff.total());
+    }
+
+    public void testImencodeStringMatListOfByteListOfInteger() {
+        MatOfInt  params40 = new MatOfInt(Imgcodecs.IMWRITE_JPEG_QUALITY, 40);
+        MatOfInt  params90 = new MatOfInt(Imgcodecs.IMWRITE_JPEG_QUALITY, 90);
+        /* or
+        MatOfInt  params = new MatOfInt();
+        params.fromArray(Imgcodecs.IMWRITE_JPEG_QUALITY, 40);
+        */
+        MatOfByte buff40 = new MatOfByte();
+        MatOfByte buff90 = new MatOfByte();
+
+        assertTrue( Imgcodecs.imencode(".jpg", rgbLena, buff40, params40) );
+        assertTrue( Imgcodecs.imencode(".jpg", rgbLena, buff90, params90) );
+
+        assertTrue(buff40.total() > 0);
+        assertTrue(buff40.total() < buff90.total());
+    }
+
+    public void testImreadString() {
+        dst = Imgcodecs.imread(OpenCVTestRunner.LENA_PATH);
+        assertFalse(dst.empty());
+        assertEquals(3, dst.channels());
+        assertTrue(512 == dst.cols());
+        assertTrue(512 == dst.rows());
+    }
+
+    public void testImreadStringInt() {
+        dst = Imgcodecs.imread(OpenCVTestRunner.LENA_PATH, 0);
+        assertFalse(dst.empty());
+        assertEquals(1, dst.channels());
+        assertTrue(512 == dst.cols());
+        assertTrue(512 == dst.rows());
+    }
+
+    public void testImwriteStringMat() {
+        fail("Not yet implemented");
+    }
+
+    public void testImwriteStringMatListOfInteger() {
+        fail("Not yet implemented");
+    }
+
+}

modules/imgcodecs/misc/objc/ios/Mat+Converters.h

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+//
+//  Mat+UIImage.h
+//
+//  Created by Giles Payne on 2020/03/03.
+//
+
+#pragma once
+
+#ifdef __cplusplus
+#import "opencv2/core.hpp"
+#else
+#define CV_EXPORTS
+#endif
+
+#import "Mat.h"
+#import <Foundation/Foundation.h>
+#import <UIKit/UIKit.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+CV_EXPORTS @interface Mat (Converters)
+
+-(CGImageRef)toCGImage CF_RETURNS_RETAINED;
+-(instancetype)initWithCGImage:(CGImageRef)image;
+-(instancetype)initWithCGImage:(CGImageRef)image alphaExist:(BOOL)alphaExist;
+-(UIImage*)toUIImage;
+-(instancetype)initWithUIImage:(UIImage*)image;
+-(instancetype)initWithUIImage:(UIImage*)image alphaExist:(BOOL)alphaExist;
+
+@end
+
+NS_ASSUME_NONNULL_END

modules/imgcodecs/misc/objc/ios/Mat+Converters.mm

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+//
+//  Mat+UIImage.mm
+//
+//  Created by Giles Payne on 2020/03/03.
+//
+
+#import "Mat+Converters.h"
+#import <opencv2/imgcodecs/ios.h>
+
+@implementation Mat (Converters)
+
+-(CGImageRef)toCGImage {
+    return MatToCGImage(self.nativeRef);
+}
+
+-(instancetype)initWithCGImage:(CGImageRef)image {
+    return [self initWithCGImage:image alphaExist:NO];
+}
+
+-(instancetype)initWithCGImage:(CGImageRef)image alphaExist:(BOOL)alphaExist {
+    self = [self init];
+    if (self) {
+        CGImageToMat(image, self.nativeRef, (bool)alphaExist);
+    }
+    return self;
+}
+
+-(UIImage*)toUIImage {
+    return MatToUIImage(self.nativeRef);
+}
+
+-(instancetype)initWithUIImage:(UIImage*)image {
+    return [self initWithUIImage:image alphaExist:NO];
+}
+
+-(instancetype)initWithUIImage:(UIImage*)image alphaExist:(BOOL)alphaExist {
+    self = [self init];
+    if (self) {
+        UIImageToMat(image, self.nativeRef, (bool)alphaExist);
+    }
+    return self;
+}
+
+@end

modules/imgcodecs/misc/objc/macosx/Mat+Converters.h

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+//
+//  Mat+Converters.h
+//
+//  Created by Masaya Tsuruta on 2020/10/08.
+//
+
+#pragma once
+
+#ifdef __cplusplus
+#import "opencv2/core.hpp"
+#else
+#define CV_EXPORTS
+#endif
+
+#import "Mat.h"
+#import <Foundation/Foundation.h>
+#import <AppKit/AppKit.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+CV_EXPORTS @interface Mat (Converters)
+
+-(CGImageRef)toCGImage CF_RETURNS_RETAINED;
+-(instancetype)initWithCGImage:(CGImageRef)image;
+-(instancetype)initWithCGImage:(CGImageRef)image alphaExist:(BOOL)alphaExist;
+-(NSImage*)toNSImage;
+-(instancetype)initWithNSImage:(NSImage*)image;
+-(instancetype)initWithNSImage:(NSImage*)image alphaExist:(BOOL)alphaExist;
+
+@end
+
+NS_ASSUME_NONNULL_END

modules/imgcodecs/misc/objc/macosx/Mat+Converters.mm

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+//
+//  Mat+Converters.mm
+//
+//  Created by Masaya Tsuruta on 2020/10/08.
+//
+
+#import "Mat+Converters.h"
+#import <opencv2/imgcodecs/macosx.h>
+
+@implementation Mat (Converters)
+
+-(CGImageRef)toCGImage {
+    return MatToCGImage(self.nativeRef);
+}
+
+-(instancetype)initWithCGImage:(CGImageRef)image {
+    return [self initWithCGImage:image alphaExist:NO];
+}
+
+-(instancetype)initWithCGImage:(CGImageRef)image alphaExist:(BOOL)alphaExist {
+    self = [self init];
+    if (self) {
+        CGImageToMat(image, self.nativeRef, (bool)alphaExist);
+    }
+    return self;
+}
+
+-(NSImage*)toNSImage {
+    return MatToNSImage(self.nativeRef);
+}
+
+-(instancetype)initWithNSImage:(NSImage*)image {
+    return [self initWithNSImage:image alphaExist:NO];
+}
+
+-(instancetype)initWithNSImage:(NSImage*)image alphaExist:(BOOL)alphaExist {
+    self = [self init];
+    if (self) {
+        NSImageToMat(image, self.nativeRef, (bool)alphaExist);
+    }
+    return self;
+}
+
+@end

modules/imgcodecs/misc/objc/test/ImgcodecsTest.swift

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+//
+//  Imgcodecs.swift
+//
+//  Created by Giles Payne on 2020/02/10.
+//
+
+import XCTest
+import OpenCV
+
+class ImgcodecsTest: OpenCVTestCase {
+
+    let LENA_PATH = Bundle(for: ImgcodecsTest.self).path(forResource:"lena", ofType:"png", inDirectory:"resources")!
+
+    func testImencodeStringMatListOfByte() {
+        var buff = [UInt8]()
+        XCTAssert(Imgcodecs.imencode(ext: ".jpg", img: gray127, buf: &buff))
+        XCTAssertFalse(0 == buff.count)
+    }
+
+    func testImencodeStringMatListOfByteListOfInteger() {
+        let params40:[Int32] = [ImwriteFlags.IMWRITE_JPEG_QUALITY.rawValue, 40]
+        let params90:[Int32] = [ImwriteFlags.IMWRITE_JPEG_QUALITY.rawValue, 90]
+
+        var buff40 = [UInt8]()
+        var buff90 = [UInt8]()
+
+        XCTAssert(Imgcodecs.imencode(ext: ".jpg", img: rgbLena, buf: &buff40, params: params40))
+        XCTAssert(Imgcodecs.imencode(ext: ".jpg", img: rgbLena, buf: &buff90, params: params90))
+
+        XCTAssert(buff40.count > 0)
+        XCTAssert(buff40.count < buff90.count)
+    }
+
+    func testImreadString() {
+        dst = Imgcodecs.imread(filename: LENA_PATH)
+        XCTAssertFalse(dst.empty())
+        XCTAssertEqual(3, dst.channels())
+        XCTAssert(512 == dst.cols())
+        XCTAssert(512 == dst.rows())
+    }
+
+    func testImreadStringInt() {
+        dst = Imgcodecs.imread(filename: LENA_PATH, flags: 0)
+        XCTAssertFalse(dst.empty());
+        XCTAssertEqual(1, dst.channels());
+        XCTAssert(512 == dst.cols());
+        XCTAssert(512 == dst.rows());
+    }
+
+}