将图像数据转换成多种图像格式代码,ObjC代码库,德仔网

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【ObjC】将图像数据转换成多种图像格式

作者:宝清 / 发布于2014/11/17/ 729


	//ESSImageCategory header preview
	
	//
	// ESSImageCategory.h
	//
	// Created by Matthias Gansrigler on 1/24/07.
	// Copyright 2007 Eternal Storms Software. All rights reserved.
	//
	
	#import <Cocoa/Cocoa.h>
	
	@interface NSImage (ESSImageCategory)
	- (NSData *)JPEGRepresentation;
	- (NSData *)JPEG2000Representation;
	- (NSData *)PNGRepresentation;
	- (NSData *)GIFRepresentation;
	- (NSData *)BMPRepresentation;
	@end
	
	//===================================
	//ESSImageCategory source preview
	
	//
	// ESSImageCategory.m
	//
	// Created by Matthias Gansrigler on 1/24/07.
	// Copyright 2007 Eternal Storms Software. All rights reserved.
	//
	
	#import "ESSImageCategory.h"
	
	@implementation NSImage (ESSImageCategory)
	
	- (NSData* )representationForFileType: (NSBitmapImageFileType) fileType
	{
	 NSData *temp = [self TIFFRepresentation];
	 NSBitmapImageRep *bitmap = [NSBitmapImageRep imageRepWithData:temp];
	 NSData *imgData = [bitmap representationUsingType:fileType properties:nil];
	 return imgData;
	}
	
	- (NSData *)JPEGRepresentation
	{
	 return [self representationForFileType: NSJPEGFileType];
	}
	
	- (NSData *)PNGRepresentation
	{
	 return [self representationForFileType: NSPNGFileType];
	}
	
	- (NSData *)JPEG2000Representation
	{
	 return [self representationForFileType: NSJPEG2000FileType];
	}
	
	- (NSData *)GIFRepresentation
	{
	 return [self representationForFileType: NSGIFFileType];
	}
	
	- (NSData *)BMPRepresentation
	{
	 return [self representationForFileType: NSBMPFileType];
	}
	
	@end

试试其它关键字

　图像数据　　多种图像　

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