How can I get IMAQ ReadFile to read a folder of images?

[Z'atari]

Hey No_regrets, 

As the previous posting suggests, you need to append the filename to the folder path, or else this IMAQ error will occur. 

Regards,

A. Zaatari

[No_RegreTs]

That works. Thank you very much.

[saurabhdakhore]

i want to creat a project where i have to convert hand gesture i.e sing language into alpahbet....... for that i want to take image from webcam and compare it with the standard imagess................so please help me

[RavensFan]

Your message has nothing to do with the old message you posted into.  Please start a new message.

Also, what kind of help do you need?  Where have you started?  Where are you stuck?

A generic "I have a complicated project, please help me" is not going to get you any kind of meaningful help.

[saurabhdakhore]

The first step is to generate a Test and Trainer database of Navigation gestures which are to be interpreted using digital camera. The images in both the databases (Test and Trainer) will be stored using.bmp format. These images will be then pre-processed using a normal noise removal method which is Gaussian low pass filter.
These pre-processed images will be then used to obtain feature vectors of each database image. The test database image will be compared with the trainer database images using methods desired such as Thresholding, Magnitude and Phase Gradient Method, Zero Crossing Detection and Principle Component Analysis (PCA).
The appropriate image i.e. the closest match will be selected and the corresponding alphabet/navigation gesture will be displayed on the screen. Simultaneously voice output will also be played for the respective image

now from where to start thats the problem.....................this is first tym i m using labview....so plz

[RavensFan]

This is not a new message thread.  You just added to the same one.

And please use full words.  What is "tym"?  And "plz" is not a word.

[fberg]

Hi Saurab,

You can use the Vision Assisant to pattern matching. There is also a function called IMAQ Match Pattern which you can use to accomplish this. These function handle all the details of the actual matching algorithm and give a simple to use high level function. These functions are part of the Vision Development Module package. Please see the below link for an example.

Use Vision Assistant to Find Matched Patterns

https://decibel.ni.com/content/docs/DOC-32828