Week 3 Homework-Chapter 2

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本次作業閱讀的問題如下：


1.
TIFF：Tagged Image File Format
HDF：Hierarchical Data Format
PCX：Design for MS-DOS-based and Microsoft products.
ICO：display icons in Microsoft Windows.
CUR：mouse cursor in Microsoft systems.
上面的圖片格式，課本有做簡單的介紹，不知道是否能親眼見到一下。

2.
PGM
我在網路上稍微搜尋了一下跟PGM有關的資料，部份資料如下：
A PGM image represents a grayscale graphic image. There are many psueudo-PGM formats in use where everything is as specified herein except for the meaning of individual pixel values. For most purposes, a PGM image can just be thought of an array of arbitrary integers, and all the programs in the world that think they're processing a grayscale image can easily be tricked into processing something else.
他說明了PGM是一個跟灰階圖片有關的影像，之後就.....????

3.
　imfinfo('picture')
　這邊我Key in了自己的圖片 show出來的圖片訊息與課本不太相似
　ans=
　Filename: 'D:\picture\msn\雷.jpg'
　FileModDate: '19-Sep-2007 23:32:51'
　FileSize: 104242
　Format: 'jpg'
　FormatVersion: ''
　Width: 300
　Height: 300
　BitDepth: 24
　ColorType: 'truecolor'
　FormatSignature: ''
　NumberOfSamples: 3
　CodingMethod: 'Huffman'
　CodingProcess: 'Sequential'
　Comment: {}　
　是否代表有辦法透過指令修改show的information?