3
我在我的项目中使用bellow链接来安装opencv，但我们如何在终端中生成命令我不知道任何人都可以帮助我？ http://aptogo.co.uk/2011/09/opencv-framework-for-ios/OpenCV安装在xcode
A
回答
0
如链接提到请在你的Mac系统中打开位于
/Applications/Utilities/Terminal.app
终端应用程序，执行命令提到。
+0
我停在“重建OpenCV的框架，”我下载两个他提供的链接，但如何获得OpenCV源后该怎么办？ – Nims
0
18
给出。如果你想使用OpenCV的iOS上，你应该与OpenCV中提供的官方框架去（如版本2.4.2）。
这里获取最新版本：OpenCV for iOS，它拖放到你的项目，包括到您的项目的前缀是：
ExampleApp中，Prefix.pch：
#ifdef __cplusplus
#import <opencv2/opencv.hpp>
#endif
你也得将UIImage“转换”为cv :: Mat，以便在OpenCV中使用它。
UIImageCVMatConverter.h：
//
// UIImageCVMatConverter.h
//
#import <Foundation/Foundation.h>
@interface UIImageCVMatConverter : NSObject {
}
+ (UIImage *)UIImageFromCVMat:(cv::Mat)cvMat;
+ (UIImage *)UIImageFromCVMat:(cv::Mat)cvMat withUIImage:(UIImage*)image;
+ (cv::Mat)cvMatFromUIImage:(UIImage *)image;
+ (cv::Mat)cvMatGrayFromUIImage:(UIImage *)image;
+ (UIImage *)scaleAndRotateImageFrontCamera:(UIImage *)image;
+ (UIImage *)scaleAndRotateImageBackCamera:(UIImage *)image;
@end
UIImageCVMatConverter.mm：
//
// UIImageCVMatConverter.mm
//
#import "UIImageCVMatConverter.h"
@implementation UIImageCVMatConverter
+ (UIImage *)UIImageFromCVMat:(cv::Mat)cvMat withUIImage:(UIImage*)image;
{
CGColorSpaceRef colorSpace = CGImageGetColorSpace(image.CGImage);
CGFloat cols = image.size.width;
CGFloat rows = image.size.height;
CGFloat widthStep = image.size.width;
CGContextRef contextRef = CGBitmapContextCreate(NULL, cols, rows, 8, widthStep*4, colorSpace, kCGImageAlphaNoneSkipLast | kCGBitmapByteOrderDefault);
CGContextDrawImage(contextRef, CGRectMake(0, 0, cols, rows), image.CGImage);
CGContextSetRGBStrokeColor(contextRef, 1, 0, 0, 1);
CGImageRef cgImage = CGBitmapContextCreateImage(contextRef);
UIImage* result = [UIImage imageWithCGImage:cgImage];
CGImageRelease(cgImage);
CGContextRelease(contextRef);
CGColorSpaceRelease(colorSpace);
return result;
}
+(UIImage *)UIImageFromCVMat:(cv::Mat)cvMat
{
NSData *data = [NSData dataWithBytes:cvMat.data length:cvMat.elemSize()*cvMat.total()];
CGColorSpaceRef colorSpace;
if (cvMat.elemSize() == 1) {
colorSpace = CGColorSpaceCreateDeviceGray();
}
else {
colorSpace = CGColorSpaceCreateDeviceRGB();
}
CGDataProviderRef provider = CGDataProviderCreateWithCFData((__bridge CFDataRef)data);
CGImageRef imageRef = CGImageCreate(cvMat.cols, cvMat.rows, 8, 8 * cvMat.elemSize(), cvMat.step[0], colorSpace, kCGImageAlphaNone|kCGBitmapByteOrderDefault, provider, NULL, false, kCGRenderingIntentDefault);
UIImage *finalImage = [UIImage imageWithCGImage:imageRef];
CGImageRelease(imageRef);
CGDataProviderRelease(provider);
CGColorSpaceRelease(colorSpace);
return finalImage;
}
+ (cv::Mat)cvMatFromUIImage:(UIImage *)image
{
CGColorSpaceRef colorSpace = CGImageGetColorSpace(image.CGImage);
CGFloat cols = image.size.width;
CGFloat rows = image.size.height;
cv::Mat cvMat(rows, cols, CV_8UC4);
CGContextRef contextRef = CGBitmapContextCreate(cvMat.data, cols, rows, 8, cvMat.step[0], colorSpace, kCGImageAlphaNoneSkipLast | kCGBitmapByteOrderDefault);
CGContextDrawImage(contextRef, CGRectMake(0, 0, cols, rows), image.CGImage);
CGContextRelease(contextRef);
CGColorSpaceRelease(colorSpace);
return cvMat;
}
+ (cv::Mat)cvMatGrayFromUIImage:(UIImage *)image
{
cv::Mat cvMat = [UIImageCVMatConverter cvMatFromUIImage:image];
cv::Mat grayMat;
if (cvMat.channels() == 1) {
grayMat = cvMat;
}
else {
grayMat = cv :: Mat(cvMat.rows,cvMat.cols, CV_8UC1);
cv::cvtColor(cvMat, grayMat, CV_BGR2GRAY);
}
return grayMat;
}
+ (UIImage *)scaleAndRotateImageBackCamera:(UIImage *)image
{
static int kMaxResolution = 640;
CGImageRef imgRef = image.CGImage;
CGFloat width = CGImageGetWidth(imgRef);
CGFloat height = CGImageGetHeight(imgRef);
CGAffineTransform transform = CGAffineTransformIdentity;
CGRect bounds = CGRectMake(0, 0, width, height);
if (width > kMaxResolution || height > kMaxResolution) {
CGFloat ratio = width/height;
if (ratio > 1) {
bounds.size.width = kMaxResolution;
bounds.size.height = bounds.size.width/ratio;
}
else {
bounds.size.height = kMaxResolution;
bounds.size.width = bounds.size.height * ratio;
}
}
CGFloat scaleRatio = bounds.size.width/width;
CGSize imageSize = CGSizeMake(CGImageGetWidth(imgRef), CGImageGetHeight(imgRef));
CGFloat boundHeight;
UIImageOrientation orient = image.imageOrientation;
switch(orient) {
case UIImageOrientationUp:
transform = CGAffineTransformIdentity;
break;
case UIImageOrientationUpMirrored:
transform = CGAffineTransformMakeTranslation(imageSize.width, 0.0);
transform = CGAffineTransformScale(transform, -1.0, 1.0);
break;
case UIImageOrientationDown:
transform = CGAffineTransformMakeTranslation(imageSize.width, imageSize.height);
transform = CGAffineTransformRotate(transform, M_PI);
break;
case UIImageOrientationDownMirrored:
transform = CGAffineTransformMakeTranslation(0.0, imageSize.height);
transform = CGAffineTransformScale(transform, 1.0, -1.0);
break;
case UIImageOrientationLeftMirrored:
boundHeight = bounds.size.height;
bounds.size.height = bounds.size.width;
bounds.size.width = boundHeight;
transform = CGAffineTransformMakeTranslation(imageSize.height, imageSize.width);
transform = CGAffineTransformScale(transform, -1.0, 1.0);
transform = CGAffineTransformRotate(transform, 3.0 * M_PI/2.0);
break;
case UIImageOrientationLeft:
boundHeight = bounds.size.height;
bounds.size.height = bounds.size.width;
bounds.size.width = boundHeight;
transform = CGAffineTransformMakeTranslation(0.0, imageSize.width);
transform = CGAffineTransformRotate(transform, 3.0 * M_PI/2.0);
break;
case UIImageOrientationRightMirrored:
boundHeight = bounds.size.height;
bounds.size.height = bounds.size.width;
bounds.size.width = boundHeight;
transform = CGAffineTransformMakeScale(-1.0, 1.0);
transform = CGAffineTransformRotate(transform, M_PI/2.0);
break;
case UIImageOrientationRight:
boundHeight = bounds.size.height;
bounds.size.height = bounds.size.width;
bounds.size.width = boundHeight;
transform = CGAffineTransformMakeTranslation(imageSize.height, 0.0);
transform = CGAffineTransformRotate(transform, M_PI/2.0);
break;
default:
[NSException raise:NSInternalInconsistencyException format:@"Invalid image orientation"];
}
UIGraphicsBeginImageContext(bounds.size);
CGContextRef context = UIGraphicsGetCurrentContext();
if (orient == UIImageOrientationRight || orient == UIImageOrientationLeft) {
CGContextScaleCTM(context, -scaleRatio, scaleRatio);
CGContextTranslateCTM(context, -height, 0);
}
else {
CGContextScaleCTM(context, scaleRatio, -scaleRatio);
CGContextTranslateCTM(context, 0, -height);
}
CGContextConcatCTM(context, transform);
CGContextDrawImage(UIGraphicsGetCurrentContext(), CGRectMake(0, 0, width, height), imgRef);
UIImage *returnImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return returnImage;
}
+ (UIImage *)scaleAndRotateImageFrontCamera:(UIImage *)image
{
static int kMaxResolution = 640;
CGImageRef imgRef = image.CGImage;
CGFloat width = CGImageGetWidth(imgRef);
CGFloat height = CGImageGetHeight(imgRef);
CGAffineTransform transform = CGAffineTransformIdentity;
CGRect bounds = CGRectMake(0, 0, width, height);
if (width > kMaxResolution || height > kMaxResolution) {
CGFloat ratio = width/height;
if (ratio > 1) {
bounds.size.width = kMaxResolution;
bounds.size.height = bounds.size.width/ratio;
} else {
bounds.size.height = kMaxResolution;
bounds.size.width = bounds.size.height * ratio;
}
}
CGFloat scaleRatio = bounds.size.width/width;
CGSize imageSize = CGSizeMake(CGImageGetWidth(imgRef), CGImageGetHeight(imgRef));
CGFloat boundHeight;
UIImageOrientation orient = image.imageOrientation;
switch(orient) {
case UIImageOrientationUp:
transform = CGAffineTransformIdentity;
break;
case UIImageOrientationUpMirrored:
transform = CGAffineTransformMakeTranslation(imageSize.width, 0.0);
transform = CGAffineTransformScale(transform, -1.0, 1.0);
break;
case UIImageOrientationDown:
transform = CGAffineTransformMakeTranslation(imageSize.width, imageSize.height);
transform = CGAffineTransformRotate(transform, M_PI);
break;
case UIImageOrientationDownMirrored:
transform = CGAffineTransformMakeTranslation(0.0, imageSize.height);
transform = CGAffineTransformScale(transform, 1.0, -1.0);
break;
case UIImageOrientationLeftMirrored:
boundHeight = bounds.size.height;
bounds.size.height = bounds.size.width;
bounds.size.width = boundHeight;
transform = CGAffineTransformMakeTranslation(imageSize.height, imageSize.width);
transform = CGAffineTransformScale(transform, -1.0, 1.0);
transform = CGAffineTransformRotate(transform, 3.0 * M_PI/2.0);
break;
case UIImageOrientationLeft:
boundHeight = bounds.size.height;
bounds.size.height = bounds.size.width;
bounds.size.width = boundHeight;
transform = CGAffineTransformMakeTranslation(0.0, imageSize.width);
transform = CGAffineTransformRotate(transform, 3.0 * M_PI/2.0);
break;
case UIImageOrientationRight:
case UIImageOrientationRightMirrored:
boundHeight = bounds.size.height;
bounds.size.height = bounds.size.width;
bounds.size.width = boundHeight;
transform = CGAffineTransformMakeScale(-1.0, 1.0);
transform = CGAffineTransformRotate(transform, M_PI/2.0);
break;
default:
[NSException raise:NSInternalInconsistencyException format:@"Invalid image orientation"];
}
UIGraphicsBeginImageContext(bounds.size);
CGContextRef context = UIGraphicsGetCurrentContext();
if (orient == UIImageOrientationRight || orient == UIImageOrientationLeft) {
CGContextScaleCTM(context, -scaleRatio, scaleRatio);
CGContextTranslateCTM(context, -height, 0);
}
else {
CGContextScaleCTM(context, scaleRatio, -scaleRatio);
CGContextTranslateCTM(context, 0, -height);
}
CGContextConcatCTM(context, transform);
CGContextDrawImage(UIGraphicsGetCurrentContext(), CGRectMake(0, 0, width, height), imgRef);
UIImage *returnImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return returnImage;
}
@end
重命名您的视图控制器实现文件* .mm
MyViewController.m -> MyViewController.mm
和进口在UIImageCVMatConverter在您的视图控制器：
#import "UIImageCVMatConverter.h"
现在，您可以将您的视图控制器内混合Objective-C和C++代码的OpenCV：
cv::Mat img = [UIImageCVMatConverter cvMatFromUIImage:[UIImage imageNamed:@"my_image.png"]];
...
玩得开心！
2
@Nims，如@moosgummi说，它的工作原理，但我也做了以下步骤：
- 添加库的libC++ dylib
- 在 “生成设置” - “苹果。 LLVM编译器XX - 语言” - ‘编译来源’ - 对象的C++
+0
随着moosgummi和你的信息，它的工作非常好。感谢分享 ：） – Prerna
1
你可以写所有的类方法，或者你可以简单地包括ios.h文件。 它有两种方法已经写入图像处理。
这是我的代码。
对不起所有的评论，我包括他们来显示我的研究进展。
#import "JmBViewController.h"
@interface JmBViewController()
@end
@implementation JmBViewController
- (void)viewDidLoad {
[super viewDidLoad];
_imgtest = [UIImage imageNamed:@"IMG_0424.PNG"];
cv::Mat cvImage;
UIImageToMat(_imgtest, cvImage);
if (!cvImage.empty()) {
cv::Mat gray;
// cv::Mat filteredMat;
cv::cvtColor(cvImage, gray, CV_BGRA2GRAY);
// cv::GaussianBlur(gray, gray, cv::Size(5, 5), 1.2, 1.2);
cv::vector<cv::Vec3f> circles;
/*
for(size_t i = 0; i < circles.size(); i++)
{
cv::Point center((cvRound(circles[i][0]), cvRound(circles[i][1])));
int radius = cvRound(circles[i][2]);
cv::circle(gray, center, 3, cv::Scalar(0,255,0));
cv::circle(gray, center, radius, cv::Scalar(0,0,255));
}
*/
// for (int i = 1; i < 15; i = i + 2)
cv::GaussianBlur(gray, gray, cv::Size(9, 9), 1.5, 1.5);
cv::Mat edges;
cv::Canny(gray, edges, 0, 50);
//gray.setTo(cv::Scalar::all(0));
//gray.setTo(cv::Scalar::all(255), edges);
cv::HoughCircles(gray, circles, CV_HOUGH_GRADIENT, 1, 30, 50, 20, 10, 25);
for(size_t i = 0; i < circles.size(); i++)
{
cv::Point center(cvRound(circles[i][0]), cvRound(circles[i][1]));
int radius = cvRound(circles[i][2]);
cv::circle(cvImage, center, 5, cv::Scalar::all(200), -1, 8, 0);//center
cv::circle(cvImage, center, radius, cv::Scalar::all(255), 3, 8, 0);//diamter
NSLog(@"Circles: %ld", i+1);
// cv::imshow(&"circles i " [ i], gray);
}
_imgView.image = MatToUIImage(cvImage);
}
/*
cv::Mat cvImage;
cv::Mat grey;
cv::Mat filteredMat;
cv::vector<cv::Vec3f> circles;
// cv::cvtColor(_imgtest, cvImage, CV_BGR2GRAY);
cv::threshold(grey, filteredMat, 100, 255, CV_THRESH_BINARY);
[UIImageCVMatConverter cvMatGrayFromUIImage:_imgtest];
// cv::cvtColor(cvImage, grey, CV_RGBA2GRAY);
// UIImageToMat(_imgtest, cvImage);
cv::HoughCircles(cvImage, circles, CV_HOUGH_GRADIENT, 1, 50);
// MatToUIImage(cvImage);
_imgView.image = [UIImageCVMatConverter UIImageFromCVMat:cvImage];
_imgView.image = MatToUIImage(cvImage);
*/
// Do any additional setup after loading the view, typically from a nib.
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
/*
UIImage* MatToUIImage(const cv::Mat& image) {
NSData *data = [NSData dataWithBytes:image.data length:image.elemSize()*image.total()];
CGColorSpaceRef colorSpace;
if (image.elemSize() == 1) {
colorSpace = CGColorSpaceCreateDeviceGray();
}else { colorSpace = CGColorSpaceCreateDeviceRGB();
}
CGDataProviderRef provider = CGDataProviderCreateWithCFData((__bridge CFDataRef)data);
CGImageRef imageRef = CGImageCreate(image.cols, image.rows, 8, 8*image.elemSize(), image.step.p[0], colorSpace, kCGImageAlphaNone|kCGBitmapByteOrderDefault, provider, NULL, FALSE, kCGRenderingIntentDefault);
UIImage *finalImage = [UIImage imageWithCGImage:imageRef];
return finalImage;
}
*/
@end
我希望这有助于！
这里是我在浏览器头文件中的＃包括。
#import <UIKit/UIKit.h>
// #import "UIImageCVMatConverter.h"
#import <opencv2/highgui/highgui_c.h>
#import <opencv2/highgui/highgui.hpp>
#import <opencv2/imgproc/imgproc_c.h>
#import <opencv2/imgproc/imgproc.hpp>
#import <opencv2/highgui/ios.h>
#import <opencv2/core/core_c.h>
#import <opencv2/core/core.hpp>
@interface JmBViewController : UIViewController
@property (weak, nonatomic) IBOutlet UIImageView *imgView;
@property (weak, nonatomic) UIImage *imgtest;
@end
无需编译或使自己的架构，只需下载您的OpenCV的网站想要的版本，把它拖到项目下的框架，确保“将所有文件复制到目标”当被问及被确认Xcode，如果你使用的是iOS。这是我发现的最简单的方法，即在没有所有终端命令和cMake废话的情况下将框架包含到项目中。
0
不要忘记你的所有.m文件转换成.mm文件，还有什么别的都不行
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如果有人帮你，你应该接受雁） – dom