IOS把图片切成小片

概述IOS把图片切成小片

下面是内存溢出 jb51.cc 通过网络收集整理的代码片段。

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#import <Foundation/Foundation.h> #import <AppKit/AppKit.h>

int main(int argc,const char * argv[]) {
    @autoreleasepool {
        if (argc < 2) {
            return ;
        }
        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[];
            size.wIDth = [representation pixelsWIDe];
            size.height = [representation pixelsHigh];
        }
        NSRect rect = NSMakeRect(,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 =;y<rows;++y) {
            for (int x=;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 = [imageRep representationUsingType:NSJPEGfileType propertIEs:nil];
                CGImageRelease(TitleImage);
               
                Nsstring *path = [outputPath stringByAppendingFormat:@"_%02i_%02i.jpg",x,y];
                [data writetofile:path atomically:NO];
            }
        }
    }
    return 0; }
终端运行: ./CutimageAPP 1.jpg

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总结

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