影象的讀取,顯示以及儲存
阿新 • • 發佈:2018-12-09
%讀取影象 image = imread(‘hunan.jpg’); %顯示影象 imshow(image)
read_show_image 警告: 影象太大,無法在螢幕上顯示;將以 33% 顯示 In images.internal.initSize (line 71) In imshow (line 332) In read_show_image (line 4) %顯示影象陣列的附加資訊 whos f additional_information Name Size Bytes Class Attributes
f 1200x1077x3 3877200 uint8 %確定影象大小 size(f)
determine_size
ans =
1200 1077 3
%將影象寫到磁碟上 imwrite(f,’hunan.jpg’,’quality’,20) %壓縮並獲得影象的其他詳細資訊 imfinfo hunan.jpg
compress_get_information
ans =
包含以下欄位的 struct:
Filename: 'D:\WorkSpaces\Matlab\hunan.jpg' FileModDate: '14-Sep-2018 21:42:10' FileSize: 64197 Format: 'jpg' FormatVersion: '' Width: 1077 Height: 1200 BitDepth: 24 ColorType: 'truecolor' FormatSignature: '' NumberOfSamples: 3 CodingMethod: 'Huffman' CodingProcess: 'Sequential' Comment: {}