How can i Save captured images from webcam with different file names

Dave Chika

Hello, with reference to this thread http://www.c-sharpcorner.com/Forums/Thread/142990/,

How can i save images captured from webcam to my c:/ drive with different file names.
       i have been able to capture image webcam and save it on my c:/ drive, but am having slight problems. i want each time an image is saved,it should not overwrite the old captured one already saved on my c:/ (i.e images saved will be different from previous ones left untouched with different names e.g pix1.jpg,pix2.jpg,pixs3.jpg,pix4.jpg etc).

this is the exact codes am using to capture image from webcam
https://sites.google.com/site/webcamlibrarydotnet/winfrom-and-csharp-sample-code-and-download

i modifyied the SaveImageCapture code so that it saves directly to my c:/ drive without promting the use of   FileDialog box

      public static void SaveImageCapture(System.Drawing.Image image)
        {
image.Save("c:\\image.gif", System.Drawing.Imaging.ImageFormat.Jpeg);
   }

7 Replies

Know the answer? Post it — somebody with the same question will find it here.

Dipal Choksi15y ago
Accepted answer
here is an interesting binary search solution proposed in this thread:

http://stackoverflow.com/questions/909521/how-to-solve-this-problem-storing-values-persistenly-of-files-in-a-directory/909545#909545

HTH

Happy Coding!
Dave Chika15y ago
Pls Hobbs can u elaborate ur solution codematically (i mean can u buttress ur points with a line or two of c# codes please),thanks for ur anticipated response
Sam Hobbs15y ago
It is not difficult; it truly is not. You just get the filenames as I described earlier then for each filename, use the Substring method of the string to get the characters after the first three (after "pix") then convert that to an integer then keep the maximum value of all the filenames then create a new filename with a number that is one greater than the current highest number. Very easy.
Dave Chika15y ago
okay if i create a folder in c:\\ for saving the images only like this

image.Save("c:\\newfolder\image1.gif", System.Drawing.Imaging.ImageFormat.Jpeg);

so how do i increment each saved image on it so that a prevoiusly saved image is not overwritten by subsequent or new ones.
Suthish Nair15y ago
I think the best way is to save the file name with date and time values instead of image1, 2 etc... Or you need to create a logic to find all the image files from main c: drive and incremented the max length/count by 1.
Dave Chika15y ago
@ Sam Hobbs

lets the code below helps me to save a captured image to my c:\ drive with image.gif as the image name for the the first captured image

public static void SaveImageCapture(System.Drawing.Image image)
{
image.Save("c:\\image1.gif", System.Drawing.Imaging.ImageFormat.Jpeg);
} // bolded is the first saved image name

and on saving another image it should save as it image2.gif, saving another one again as image3.gif to say image5.gif etc. all the intances of the images is saved without having to overwrite the each one.

thanks for ur response.
please am just a beginner in windows programming,so a line or more codes will be highly appreciated.
Sam Hobbs15y ago
Your problem has nothing to do with capturing images. You said in your other thread that you are able to capture images. You just need to be able to create a unique filename.

Use GetDirectories Method of the DirectoryInfo class in the System.IO namespace to get a list of files in a directory, then find the filename with the highest number in it and then just use the next number. For example, if the filenames in the directory are pix1.jpg, pix2.jpg, pix3.jpg and pix4.jpg then just use pix5.jpg.