把圖片切成小片(IOS)
發表時間:2020-10-19
發布人:葵宇科技
浏覽次數:23
把圖片切成小片(IOS)
by 伍雪(xuě)穎
[img]http://img.blog.csdn.net/20150105144037288?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvcmFpbmxlc3Zpbw==/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center
#import <Foundation/Foundation.h>
#import <AppKit/AppKit.h>
int main(int argc, const char * argv[]) {
@autoreleasepool {
if (argc < 2) {
return 0;
}
NSString *inputFile = [NSString stringWithCString:argv[1] encoding:NSUTF8StringEncoding];
CGFloat titleSize = 256;
NSString *outputPath = [inputFile stringByDeletingPathExtension];
NSImage *image = [[NSImage alloc] initWithContentsOfFile:inputFile];
NSSize size = [image size];
NSArray *representations = [image representations];
if ([representations count]) {
NSBitmapImageRep *representation = representations[0];
size.width = [representation pixelsWide];
size.height = [representation pixelsHigh];
}
NSRect rect = NSMakeRect(0, 0, size.width, size.height);
CGImageRef imageRef = [image CGImageForProposedRect:&rect context:NULL hints:nil];
NSInteger rows = ceil(size.height/titleSize);
NSInteger cols = ceil(size.width/titleSize);
for (int y =0;y<rows;++y) {
for (int x=0;x<cols;++x) {
CGRect titleRect = CGRectMake(x*titleSize, y*titleSize, titleSize, titleSize);
CGImageRef titleImage = CGImageCreateWithImageInRect(imageRef, titleRect);
NSBitmapImageRep *imageRep = [[NSBitmapImageRep alloc] initWithCGImage:titleImage];
NSData *data = http://www.sjsjw.com/100/000173MYM027461/[imageRep representationUsingType:NSJPEGFileType properties:nil];
CGImageRelease(titleImage);
NSString *path = [outputPath stringByAppendingFormat:@"_%02i_%02i.jpg",x,y];
[data writeToFile:path atomically:NO];
}
}
}
return 0;
}
終端運行:
./CutImageAPP 1.jpg