Memory need on a bitmap stream

Question

Hello,

I have a question, what is the right/best way to free the memory. In my case, the method which I have wrote, is running in a thread and receives Bitmaps from the camera. These Bitmaps are shown in a pictuebox. So if the picturebox currently shows the bitmap it is not possible to dispose this bitmap and the reserved memory by the programm is growing all the time.

Any ideas?
(Visual Studio C# 2010 Express)

Archie Flink · Answer

It didn't solved the problem but thx. The memmory is still growing, just slow but it is. I have no idea for this phenomenom. I have allready tried to convert the colors in int array and convert it back before Setpixel, but without effort, the same situation.

Pradeep Chandraker · Answer

Try using block like this, it should solve memory leak issue. public void get_color_list() { using (Bitmap im1 = new Bitmap("C:\ims_data\Temp\pal.png")) { using (Bitmap bmp = new Bitmap(im1, 55, 255)) { for (int j = 0; j { Color pixelColor = bmp.GetPixel(0, j); colorList.Insert(j, pixelColor); } } } }

Frogleg · Answer

Not really sure what you need. Can you upload you project - so that I can have a better understanding

Archie Flink · Answer

I found a way, how to display the images without flickering. But the momory problem seems to came not from memspace reservation for the bitmap. I have wondered when i found a big difference between : bmp.SetPixel(x, y, Color.FromArgb(bCol, bCol, bCol)); // no mem growing and bmp.SetPixel(x, y, colorList[bCol]); // continuously mem growing bCol range is 0 - 255. colorList is a list of assigned colors for each grayscale value, will be generated once while FormLoad. List colorList = new List (); public void get_color_list() { Bitmap im1 = new Bitmap("C:\ims_data\Temp\pal.png"); Bitmap bmp= new Bitmap(im1, 55, 255); for (int j = 0; j { Color pixelColor = bmp.GetPixel(0, j); colorList.Insert(j, pixelColor); } im1.Dispose(); bmp.Dispose(); } What could be wrong if I just refer to the color in a list? Why do this result i small memory leaks?

Frogleg · Answer

Save images to a temp file