AVI--> suite d'images sur Matlab.
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Pierrecastor Messages postés 41491 Date d'inscription Statut Modérateur Dernière intervention -
Pierrecastor Messages postés 41491 Date d'inscription Statut Modérateur Dernière intervention -
Bonjour,
G un projet de traitement d'images sur Matlab, G un fichier AVI, et je veux le transformer en une suite d'images,et je suis trés débutant. La fonction mmreader ne marche pas, readavi recncontre des problèmes aussie ( 'Unable to locate decompressor to decompress video stream') mon matlab est 7.0.
Ya t il quelqu'un qui pourrait m'aider?
G un projet de traitement d'images sur Matlab, G un fichier AVI, et je veux le transformer en une suite d'images,et je suis trés débutant. La fonction mmreader ne marche pas, readavi recncontre des problèmes aussie ( 'Unable to locate decompressor to decompress video stream') mon matlab est 7.0.
Ya t il quelqu'un qui pourrait m'aider?
A voir également:
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- Mp4 to avi - Télécharger - Conversion & Codecs
3 réponses
Bonjour,
je ne connais pas Matlab G, c'est un soft que tu as acheté ?
Sinon, tu as ce lien :
http://www.tutoriels-animes.com/extraire-images-video.html
aloes
je ne connais pas Matlab G, c'est un soft que tu as acheté ?
Sinon, tu as ce lien :
http://www.tutoriels-animes.com/extraire-images-video.html
aloes
Il te faut un codec installé pr décompresser le video, voici l'explication
Windows AVI files can be compressed using an infinite number of compression methods, depending on the application where the file originated. In MATLAB, you can only specify which compression method to use when writing the file, but not when reading. When reading, AVIREAD will figure out how to decompress the movie based on how it is compressed. It will use a codec that is installed on your machine; you cannot install codecs in MATLAB.
The compressors/decompressors (codecs) can be installed (as dll's) on Windows machines for media players/editors to use. During playback, the media player looks for the codec. If the player can not find the codec needed to decompress the video, an error occurs. This is what is happening in MATLAB. AVIREAD is making some Windows API calls to try and find the installed codec to decompress the video.
By using the AVIINFO function, you can determine the codec used to compress the file.
All codecs have a four character code (fourcc) to describe them. A list of fourcc's can be found at
https://www.free-codecs.com/guides/guides.php?f=fourcc
You need to have the correct codec installed to view or load the movie. Contact the manufacturer of the codec to obtain the necessary codec files, or go to https://www.moviecodec.com/
Pour plus dèinformation
https://www.mathworks.com/matlabcentral/answers/101316-why-do-i-receive-an-error-when-using-the-aviread-function
Windows AVI files can be compressed using an infinite number of compression methods, depending on the application where the file originated. In MATLAB, you can only specify which compression method to use when writing the file, but not when reading. When reading, AVIREAD will figure out how to decompress the movie based on how it is compressed. It will use a codec that is installed on your machine; you cannot install codecs in MATLAB.
The compressors/decompressors (codecs) can be installed (as dll's) on Windows machines for media players/editors to use. During playback, the media player looks for the codec. If the player can not find the codec needed to decompress the video, an error occurs. This is what is happening in MATLAB. AVIREAD is making some Windows API calls to try and find the installed codec to decompress the video.
By using the AVIINFO function, you can determine the codec used to compress the file.
All codecs have a four character code (fourcc) to describe them. A list of fourcc's can be found at
https://www.free-codecs.com/guides/guides.php?f=fourcc
You need to have the correct codec installed to view or load the movie. Contact the manufacturer of the codec to obtain the necessary codec files, or go to https://www.moviecodec.com/
Pour plus dèinformation
https://www.mathworks.com/matlabcentral/answers/101316-why-do-i-receive-an-error-when-using-the-aviread-function
