Crop an image in asp.net using c#

Question

I am working on asp.net using c#. I have to adjust an image by taking a portion of that image. I want to crop a portion of image from middle like in the below image.

can anyone help me please.

Answer 1

I have done this by getting co-ordinates of the image's portion by Jquery.

jQuery(function($) {
        $('#target').Jcrop({
            onChange: showCoords,
            onSelect: showCoords,
            onRelease: clearCoords
        });
    });
    function showCoords(c) {
        $('#xaxis').val(c.x);
        $('#yaxis').val(c.y);
        $('#x2').val(c.x2);
        $('#y2').val(c.y2);
        $('#xwidth').val(c.w);
        $('#div_width').val(c.w);
        $('#yheight').val(c.h);
        $('#div_height').val(c.h);
    };
    function clearCoords() {
        $('#coords input').val('0');
        $('#yheight').css({ color: 'red' });
        window.setTimeout(function() {
            $('#yheight').css({ color: 'inherit' });
        }, 500);
    };

Then I used these co-ordinates to crop image in C# like

String savedFileName = uploadProfileImage(profileImageName, new System.Drawing.Rectangle(Int32.Parse(xaxis), Int32.Parse(yaxis), Int32.Parse(xwidth), Int32.Parse(yheight)));

public String uploadProfileImage(string profileImageName, System.Drawing.Rectangle rectangle)
    {
        try
        {
            String retFileName = "";
            if (profileImageName != null || profileImageName != "")
            {
                GenerateCroppedThumbNail(profileImageName, rectangle);
            }
            return retFileName;
        }
        catch (Exception)
        {
            return String.Empty;
        }
    }

That works fine