Hi All,

Here i am writing the code to resize the image size. Whenever we change the size like 640 * 480 pixels like.... then change the imaeg size of panel or picture box control (image is saved to this picture box/panel). And if save this file in .jpeg, .png.....then selecting the option from combobox.

And in another page iwant code tochang the colur of an image to black and white and gray, to change the image quality.

I am doing this in Windows application with c#.net. Send code to this requirement plz.

Thanks in advance.

Hi,

1). You can set the SizeMode property of the PictureBox to AutoSize, then whenever the image size changes, the PictureBox will adjust its size accordingly.

2). You can save the image with the format you need by ImageFormat enumeration. Something like this:

this.pictureBox1.Image.Save(@"c:\test2\a.png", ImageFormat.Png);

3). For making the image gray, one approach is to loop through the pixels in the bitmap,retrieve the color on the specified pixel, and change it using some algorithm, for example, we can do someting like this to gray the image

Hi,

1). You can set the SizeMode property of the PictureBox to AutoSize, then whenever the image size changes, the PictureBox will adjust its size accordingly.

2). You can save the image with the format you need by ImageFormat enumeration. Something like this:

this.pictureBox1.Image.Save(@"c:\test2\a.png", ImageFormat.Png);

3). For making the image gray, one approach is to loop through the pixels in the bitmap,retrieve the color on the specified pixel, and change it using some algorithm, for example, we can do someting like this to gray the image

Hi thanks for your reply.

But i didn't get my exact requirement. My query is to chenge the image size. First what i am doing is i am assigning the image to picturebox. And next if we change the size of an image the i am entering the new width and height in textboxes then click on the Apply button, here these new height and width will be set to Picture box image. And this requirement i want in percentages also. Please help me in this query.

Thank you .

The AutoSize mode won't work for you?