urgently needed
显示 更早的评论
Hello I need a way to create an images database using Matlab,any body can help me??? i want to make a digital images database for faces to face recognition system. I make the code nd then I put the images in an array and take each image manually so i need to put them in a database.
17 个评论
John D'Errico
2011-4-30
Sorry, but the do your homework for you IMMEDIATELY hotline has a full load right now. Your request will be put on the bottom of the queue, and addressed as soon as it rises to the top. The projected date for that event is now early in October of the year 2037.
Jan
2011-4-30
@John: This does not sound like a homework. Could you imagine that a teacher gives a homework like "Please create an image database in Matlab"?!
And it is Saturday - urgent homework questions never appear before Sunday, do they?
@Suny: Do you have a specific question? Can you provide any details? E.g. do you mean digital images or do you want to create a catalogue about hardware images of a museum? Is there a reason not to use a database as a database? Although you *can* create everything (computable) in Matlab, it is not a good idea to "misuse" Matlab to something, which is implemented as a dedicated program already.
Oleg Komarov
2011-4-30
http://www.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers
John D'Errico
2011-4-30
No, but I can imagine a class project for this purpose. Or it might be a grad student, looking for someone to help them do their thesis. Regardless, the person has not even thought about their project, no matter what the source.
Jan
2011-4-30
I agree, John. I hestiate to believe that such a general question like "I need Matlab code for an image database", which lacks any details, is meant seriously. Do I feed a troll with my Sunday-theorem?
I'm going to distribute "no_details" tags.
Walter Roberson
2011-4-30
If I calculate the times correctly, this might have been posted just after midnight Sunday in one time zone. ;-)
suny
2011-5-1
John D'Errico
2011-5-1
Hmm. If you are doing this for your own personal improvement, then why is it urgent? Only when one has an externally placed timeline, i.e., homework, will it be urgent. Sorry, but this looks like a homework project, smells like one, so it must be one.
suny
2011-5-1
Jan
2011-5-1
@Suny: If you need help, edit your question and insert as much details as necessary to provide any meaningful answer. If a questions looks like the asking person has spent as much work as possible to solve the problem, the contributors here will be more enthusiastic to support you. "I need Matlab code" does not sound like you are willing to invest your own power to solve your own urgent problem.
Walter Roberson
2011-5-1
To me, "urgent" needs to be a reason that I can take to my family to explain why I am spending time on the matter rather than spending that time with my family or spending it doing chores. Someone's personal choice of time-management strategies for their learning does not pass that test.
Oleg Komarov
2011-5-2
I am undecided if to post the link to this question in my "TUTORIAL: how to ask questions...". IMHO this thread is a perfect example of how the adjective urgent sometimes yields completely the opposite effect.
2 days, no answers.
suny
2011-5-2
Walter Roberson
2011-5-2
suny, Jan provided specific questions for you to answer that would be be useful in order for us to know how best to guide you. It is difficult for us to answer the question without knowing more about your goals and restrictions.
suny
2011-5-2
Walter Roberson
2011-5-2
Jan asked, "Do you have a specific question?" and "Is there a reason not to use a database as a database?" and "If you need help, edit your question and insert as much details as necessary to provide any meaningful answer. If a questions looks like the asking person has spent as much work as possible to solve the problem, the contributors here will be more enthusiastic to support you."
Is the key point for you the storing of the images, or is it the retrieval of the images? Is the most frequently retrieved information the images or is it feature vectors that describe the images? What size of images are involved (in bytes)? Are there multiple images per person to be stored? What (if any) performance criteria are there? Do you have a specific reason to prefer one database over another? What binary format should the images be stored in, a plain array of bytes or (say) JPEG format?
Oleg Komarov
2011-5-3
@suny: after all it is not about the word "urgent" it is about YOU not getting any help because of YOU and YOU only.
I saw people people getting the first answer in a minute because the contributors were able to do so.
It is in YOUR interest to give the best description of your problem. If you do not get an answer and you are requested to provide more details then it could be that the description you gave is not as specific as you thought (as you could have already guessed from Walter's previous comment).
I suggest to reconsider the title of your post and to look at mySQL, a freeware DBMS, to store your images. There are plenty of ways to establish a connection with MATLAB (a hint: google).
Any problems you may encounter, post here (as indicated in my TUTORIAL: how to ask a question...)
回答（2 个）
Sean de Wolski
2011-5-2
0 个投票
Go to www.images.google.com type in "face", then click search and save the pictures in a directory on your computer.
If it was my homework assignment I might search with "pretty face" instead.
vinh
2011-5-26
0 个投票
Why don't you save your array which contains your image data by "save" function, Matlab will put image data in a ".mat" file. and you can use "load" function to access it later as an image database.
类别
在 帮助中心 和 File Exchange 中查找有关 Motor Drives 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
