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	<title>图片 - 四号程序员</title>
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		<title>Java如何将RGB图片转化为CMYK图片</title>
		<link>https://www.coder4.com/archives/7876</link>
					<comments>https://www.coder4.com/archives/7876#respond</comments>
		
		<dc:creator><![CDATA[coder4]]></dc:creator>
		<pubDate>Thu, 13 Jul 2023 11:28:13 +0000</pubDate>
				<category><![CDATA[Java]]></category>
		<category><![CDATA[cmyk]]></category>
		<category><![CDATA[Java && J2EE]]></category>
		<category><![CDATA[RGB]]></category>
		<category><![CDATA[图片]]></category>
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					<description><![CDATA[首先声明： 只有jpeg才支持cmyk 默认Java是不能读取cmyk的jpg的，需要用 这里讨论的是如何在内存中把rgb转为cmyk // 假设file是png的，即rgb的 BufferedImage img = ImageIO.read(file); ColorSpace cpace = new ICC_ColorSpace( ICC_Profile.getInstance("/home/co[......] 继续阅读]]></description>
		
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		<title>opencv拼接图片和切分图片</title>
		<link>https://www.coder4.com/archives/7850</link>
					<comments>https://www.coder4.com/archives/7850#respond</comments>
		
		<dc:creator><![CDATA[coder4]]></dc:creator>
		<pubDate>Mon, 24 Apr 2023 01:32:09 +0000</pubDate>
				<category><![CDATA[opencv]]></category>
		<category><![CDATA[切分]]></category>
		<category><![CDATA[图片]]></category>
		<category><![CDATA[拼接]]></category>
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					<description><![CDATA[1 左右拼接(height要求一样) import cv2 from google.colab.patches import cv2_imshow img_left = cv2.imread("./left.jpg") img_right = cv2.imread("./right.jpg") img = cv2.hconcat([img_left, img_right]) cv2.imwrite("merge.jpg", img) 2 垂直拼接(width要求一样） i[......] 继续阅读]]></description>
		
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		<title>OpenCV判断图片是否模糊</title>
		<link>https://www.coder4.com/archives/7112</link>
					<comments>https://www.coder4.com/archives/7112#respond</comments>
		
		<dc:creator><![CDATA[coder4]]></dc:creator>
		<pubDate>Fri, 30 Oct 2020 14:13:54 +0000</pubDate>
				<category><![CDATA[算法&数据结构]]></category>
		<category><![CDATA[opencv]]></category>
		<category><![CDATA[图片]]></category>
		<category><![CDATA[模糊]]></category>
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					<description><![CDATA[合理用最简单的拉普拉斯算子，可以参考这篇文章：https://my.oschina.net/u/4611954/blog/4585054 # image = cv2.imread(imagePath) def variance_of_laplacian(image): gray = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY) return cv2.Laplacian(image, cv2.CV_64F).var() # 越大越清晰[......] 继续阅读]]></description>
		
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		<title>iOS 10新的通知机制中如何添加图片</title>
		<link>https://www.coder4.com/archives/5359</link>
					<comments>https://www.coder4.com/archives/5359#respond</comments>
		
		<dc:creator><![CDATA[coder4]]></dc:creator>
		<pubDate>Sun, 26 Feb 2017 06:31:21 +0000</pubDate>
				<category><![CDATA[iOS]]></category>
		<category><![CDATA[10]]></category>
		<category><![CDATA[ios]]></category>
		<category><![CDATA[图片]]></category>
		<category><![CDATA[通知]]></category>
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					<description><![CDATA[1、新建Target 2、实现UNNotificationServiceExtension 我这里用的是swift // // NotificationService.swift // NotificationServiceExtension // // Created by Heyuan Li on 17/2/26. // Copyright © 2017年 fenbi. All rights reserved. // import Us[......] 继续阅读]]></description>
		
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		<title>使用Apache POI将ppt截屏成png格式(+背景和图片)</title>
		<link>https://www.coder4.com/archives/1203</link>
					<comments>https://www.coder4.com/archives/1203#respond</comments>
		
		<dc:creator><![CDATA[coder4]]></dc:creator>
		<pubDate>Thu, 02 Dec 2010 11:20:16 +0000</pubDate>
				<category><![CDATA[Java]]></category>
		<category><![CDATA[Linux]]></category>
		<category><![CDATA[Apahce]]></category>
		<category><![CDATA[Java && J2EE]]></category>
		<category><![CDATA[png]]></category>
		<category><![CDATA[POI]]></category>
		<category><![CDATA[ppt]]></category>
		<category><![CDATA[中文]]></category>
		<category><![CDATA[图片]]></category>
		<category><![CDATA[无背景]]></category>
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		<category><![CDATA[背景图片]]></category>
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		<category><![CDATA[转换]]></category>
		<category><![CDATA[颜色]]></category>
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					<description><![CDATA[推荐一篇很好的Apache POI文章：使用POI操作PPT文档 本代码的大部分内容参考自这里。 改进：多渲染了ppt背景颜色和ppt背景图片。 有时候，不得不承认。。。Java在做应用上还是很好的，可用的库太多了。 另：貌似ppt比pdf好解析多了，不知道ppt格式M$有没有申请专利，反正pptx已经能解析了。 package extract; import java.awt.Color; import java.awt.Dimension; import java.aw[......] 继续阅读]]></description>
		
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		<title>JPanel中放图片如何放大，显示滚动条……</title>
		<link>https://www.coder4.com/archives/596</link>
					<comments>https://www.coder4.com/archives/596#respond</comments>
		
		<dc:creator><![CDATA[coder4]]></dc:creator>
		<pubDate>Fri, 02 Apr 2010 02:49:39 +0000</pubDate>
				<category><![CDATA[Java]]></category>
		<category><![CDATA[Java && J2EE]]></category>
		<category><![CDATA[JPanel]]></category>
		<category><![CDATA[图片]]></category>
		<category><![CDATA[放大]]></category>
		<category><![CDATA[缩小]]></category>
		<category><![CDATA[调整大小]]></category>
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					<description><![CDATA[JScollPane以及JPanel相关 最近就遇到一个问题: 因为要在一个jpanel里面显示一幅图片,但是图片的实际大小,我们知道是不相同的.当然有一种方式可以解决完全显示的问题.那就是利用画图函数强制指定区域大小. 但是,明显,当我们需要实际显示图片大小时,上述方法就不适用了. JPanel是一个比较特殊的组件,当我们把他添加到一个container里面后,它会自动调整显示大小,以配合container的大小,所以如果图片大大小超过container的大小,那么在jpanel中显示[......] 继续阅读]]></description>
		
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