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MGViewController.mm
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MGViewController.mm
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//
// MGViewController.m
// melanogenesis
//
// Created by Aleksey Orlov on 6/28/13.
// Copyright (c) 2013 Aleksey Orlov. All rights reserved.
//
#import "MGViewController.h"
#import "opencv2/opencv.hpp"
#import "opencv2/highgui/highgui.hpp"
#import "opencv2/imgproc/imgproc.hpp"
#import <stdio.h>
#import <stdlib.h>
using namespace cv;
@interface MGViewController (){
int col, row;
UIImage* img;
cv::Mat image;
}
- (UIImage *)imageWithCVMat:(const Mat&)cvMat;
@end
@implementation MGViewController
@synthesize imageView;
@synthesize btn;
- (UIImage *)imageWithCVMat:(const 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, // Width
cvMat.rows, // Height
8, // Bits per component
8 * cvMat.elemSize(), // Bits per pixel
cvMat.step[0], // Bytes per row
colorSpace, // Colorspace
kCGImageAlphaNone | kCGBitmapByteOrderDefault, // Bitmap info flags
provider, // CGDataProviderRef
NULL, // Decode
false, // Should interpolate
kCGRenderingIntentDefault); // Intent
UIImage *imageDst = [[UIImage alloc] initWithCGImage:imageRef];
CGImageRelease(imageRef);
CGDataProviderRelease(provider);
CGColorSpaceRelease(colorSpace);
return imageDst;
}
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
image.create(500, 500, CV_8UC3);
//image = 0;
img = [[UIImage alloc] init];
img = [self imageWithCVMat:image];
// int x = 0;
// int y = 0;
// int row = 0;
// int col = 0;
col = 200;
row = 200;
[self.imageView setImage:img];
// for (;;){
//
// x++;
// y++;
//
// col++; row++;
//
// if (col > image.cols-1) col = col - image.cols;
// if (row > image.rows-1) row = row - image.rows;
//
// if (col < 0) col = col + image.cols;
// if (row < 0) row = row + image.rows;
//
//
// image.data[row * image.step1() + col*image.channels() + 0] = 250;
//
//
// [self.imageView setImage:img];
// }
// Do any additional setup after loading the view from its nib.
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (IBAction)btnClick:(id)sender {
//col = (int)(image.cols * rand()/RAND_MAX);
//row = (int)(image.rows * rand()/RAND_MAX);
//col = + 20;
//row = + 50;
for (int i=0; i<100; i++){
col += 10;
row = 200;
if (col > image.cols-1) col = col - image.cols;
if (row > image.rows-1) row = row - image.rows;
if (col < 0) col = col + image.cols;
if (row < 0) row = row + image.rows;
//image.data[row * image.step1() + col*image.channels() + 0] = 250;
cv::circle(image, cv::Point(col, row), 50, cv::Scalar(200,200,200));
img = [self imageWithCVMat:image];
[self.imageView setImage:img];
}
}
@end