matlabimwritejpg

'bmp',Windows點陣圖(BMP);'hdf',HierarchicalDataFormat(HDF);'jpg'or'jpeg',JPEG圖形交換格式(JPEG);'pcx',WindowsPaintbrush(PCX).,MATLABFunctionReference.imwrite.Writeimagetographicsfile.Syntax.imwrite(A,filename,fmt)imwrite...'jpg'or'jpeg',JointPhotographicExpertsGroup,imwrite(A,filename)writesimagedataAtothefilespecifiedbyfilename,inferringthefileformatfromtheextension.imwritecreatesthenewfile ....

參考資訊如下
imwrite (MATLAB Function Reference)

'bmp', Windows 點陣圖(BMP) ; 'hdf', Hierarchical Data Format (HDF) ; 'jpg' or 'jpeg', JPEG 圖形交換格式(JPEG) ; 'pcx', Windows Paintbrush (PCX).

imwrite (MATLAB Functions)

MATLAB Function Reference. imwrite. Write image to graphics file. Syntax. imwrite(A,filename, fmt ) imwrite ... 'jpg' or 'jpeg', Joint Photographic Experts Group

MATLAB imwrite

imwrite( A , filename ) writes image data A to the file specified by filename , inferring the file format from the extension. imwrite creates the new file ...

MATLAB imwrite

imwrite(___, Name,Value ) 使用一个或多个名称-值参量，以指定GIF、HDF、JPEG、PBM、PGM、PNG、PPM 和TIFF 文件输出的其他参数。例如，您可以向PNG 格式的图像添加注释。

MATLAB imwrite - 将图像写入图形文件

imwrite(___, Name,Value ) 使用一个或多个名称-值参量，以指定GIF、HDF、JPEG、PBM、PGM、PNG、PPM 和TIFF 文件输出的其他参数。例如，您可以向PNG 格式的图像添加注释。

What effect does imwrite(I,'test.jpg','Quality',100) in matlab ...

2018年11月30日 — As per imwrite documentation ('Quality',100) pair means no compression but I get a psnr around 59. I expect psnr value = inf.

Write image to graphics file

imwrite(___, Name,Value ) specifies additional parameters for output GIF, HDF, JPEG, PBM, PGM, PNG, PPM, and TIFF files, using one or more name-value arguments.