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

Question

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 savedit 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.jpgpix2.jpgpixs3.jpgpix4.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); }

Dipal Choksi · 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 Chika · Answer

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 Hobbs · Answer

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 Chika · Answer

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 Nair · Answer

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 Chika · Answer

@ 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 programmingso a line or more codes will be highly appreciated.

Sam Hobbs · Answer

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.