Image cropping issue in C#





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In my asp.net C# application, I am trying to crop the below image:



enter image description here



I have selected only the face part, but the cropped image always selecting from top left corner like below:



enter image description here



I am using the below code to crop image:



  Rectangle sourceRect = new Rectangle(iX1, iY1, w, h);
System.Drawing.Image imgNew = CropImage(imgOrig, sourceRect);
private static System.Drawing.Image CropImage(System.Drawing.Image img, Rectangle cropArea)
{
Bitmap bmpImage = new Bitmap(img);
Bitmap bmpCrop = bmpImage.Clone(cropArea, bmpImage.PixelFormat);
img.Dispose();
return (System.Drawing.Image)bmpCrop;
}









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  • The second image is cropped not from the top-left corner of the first one. And Bitmap.Clone() should work fine. Check your iX1 and iY1 values, it can be incorrect.

    – Alex Skiba
    Jul 10 '14 at 6:37




















0















In my asp.net C# application, I am trying to crop the below image:



enter image description here



I have selected only the face part, but the cropped image always selecting from top left corner like below:



enter image description here



I am using the below code to crop image:



  Rectangle sourceRect = new Rectangle(iX1, iY1, w, h);
System.Drawing.Image imgNew = CropImage(imgOrig, sourceRect);
private static System.Drawing.Image CropImage(System.Drawing.Image img, Rectangle cropArea)
{
Bitmap bmpImage = new Bitmap(img);
Bitmap bmpCrop = bmpImage.Clone(cropArea, bmpImage.PixelFormat);
img.Dispose();
return (System.Drawing.Image)bmpCrop;
}









share|improve this question

























  • The second image is cropped not from the top-left corner of the first one. And Bitmap.Clone() should work fine. Check your iX1 and iY1 values, it can be incorrect.

    – Alex Skiba
    Jul 10 '14 at 6:37
















0












0








0








In my asp.net C# application, I am trying to crop the below image:



enter image description here



I have selected only the face part, but the cropped image always selecting from top left corner like below:



enter image description here



I am using the below code to crop image:



  Rectangle sourceRect = new Rectangle(iX1, iY1, w, h);
System.Drawing.Image imgNew = CropImage(imgOrig, sourceRect);
private static System.Drawing.Image CropImage(System.Drawing.Image img, Rectangle cropArea)
{
Bitmap bmpImage = new Bitmap(img);
Bitmap bmpCrop = bmpImage.Clone(cropArea, bmpImage.PixelFormat);
img.Dispose();
return (System.Drawing.Image)bmpCrop;
}









share|improve this question
















In my asp.net C# application, I am trying to crop the below image:



enter image description here



I have selected only the face part, but the cropped image always selecting from top left corner like below:



enter image description here



I am using the below code to crop image:



  Rectangle sourceRect = new Rectangle(iX1, iY1, w, h);
System.Drawing.Image imgNew = CropImage(imgOrig, sourceRect);
private static System.Drawing.Image CropImage(System.Drawing.Image img, Rectangle cropArea)
{
Bitmap bmpImage = new Bitmap(img);
Bitmap bmpCrop = bmpImage.Clone(cropArea, bmpImage.PixelFormat);
img.Dispose();
return (System.Drawing.Image)bmpCrop;
}






c# asp.net image image-processing






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edited Nov 29 '18 at 2:27









Cœur

19.3k9116155




19.3k9116155










asked Jul 10 '14 at 6:26









Praveen VRPraveen VR

92121229




92121229













  • The second image is cropped not from the top-left corner of the first one. And Bitmap.Clone() should work fine. Check your iX1 and iY1 values, it can be incorrect.

    – Alex Skiba
    Jul 10 '14 at 6:37





















  • The second image is cropped not from the top-left corner of the first one. And Bitmap.Clone() should work fine. Check your iX1 and iY1 values, it can be incorrect.

    – Alex Skiba
    Jul 10 '14 at 6:37



















The second image is cropped not from the top-left corner of the first one. And Bitmap.Clone() should work fine. Check your iX1 and iY1 values, it can be incorrect.

– Alex Skiba
Jul 10 '14 at 6:37







The second image is cropped not from the top-left corner of the first one. And Bitmap.Clone() should work fine. Check your iX1 and iY1 values, it can be incorrect.

– Alex Skiba
Jul 10 '14 at 6:37














1 Answer
1






active

oldest

votes


















2














Use this code to crop your image.



static Bitmap CropImage(Image originalImage, Rectangle sourceRectangle, Rectangle destinationRectangle)
{
var croppedImage = new Bitmap(destinationRectangle.Width, destinationRectangle.Height);
using (var graphics = Graphics.FromImage(croppedImage))
{
graphics.DrawImage(originalImage, destinationRectangle, sourceRectangle, GraphicsUnit.Pixel);
}

return croppedImage;
}


The problem is that your original algorithm doesn't specify where to start cropping from. It therefore always starts from the origin, which is not what you want.






share|improve this answer
























  • What is destination rectangle?

    – Praveen VR
    Jul 10 '14 at 8:32













  • If you look at the example, you'll see that destinationRectangle defines the dimensions of the cropped image. sourceRectangle defines where to crop from. If sourceRectangle and destinationRectangle have different dimensions, the cropped image will be stretched/compressed.

    – Levi Botelho
    Jul 10 '14 at 9:01











  • @PraveenVR - Did this help you?

    – Levi Botelho
    Jul 10 '14 at 15:20











  • it works..Great.!!

    – Praveen VR
    Jul 11 '14 at 10:21











  • Fantastic - Glad to hear it :)

    – Levi Botelho
    Jul 11 '14 at 12:31












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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









2














Use this code to crop your image.



static Bitmap CropImage(Image originalImage, Rectangle sourceRectangle, Rectangle destinationRectangle)
{
var croppedImage = new Bitmap(destinationRectangle.Width, destinationRectangle.Height);
using (var graphics = Graphics.FromImage(croppedImage))
{
graphics.DrawImage(originalImage, destinationRectangle, sourceRectangle, GraphicsUnit.Pixel);
}

return croppedImage;
}


The problem is that your original algorithm doesn't specify where to start cropping from. It therefore always starts from the origin, which is not what you want.






share|improve this answer
























  • What is destination rectangle?

    – Praveen VR
    Jul 10 '14 at 8:32













  • If you look at the example, you'll see that destinationRectangle defines the dimensions of the cropped image. sourceRectangle defines where to crop from. If sourceRectangle and destinationRectangle have different dimensions, the cropped image will be stretched/compressed.

    – Levi Botelho
    Jul 10 '14 at 9:01











  • @PraveenVR - Did this help you?

    – Levi Botelho
    Jul 10 '14 at 15:20











  • it works..Great.!!

    – Praveen VR
    Jul 11 '14 at 10:21











  • Fantastic - Glad to hear it :)

    – Levi Botelho
    Jul 11 '14 at 12:31
















2














Use this code to crop your image.



static Bitmap CropImage(Image originalImage, Rectangle sourceRectangle, Rectangle destinationRectangle)
{
var croppedImage = new Bitmap(destinationRectangle.Width, destinationRectangle.Height);
using (var graphics = Graphics.FromImage(croppedImage))
{
graphics.DrawImage(originalImage, destinationRectangle, sourceRectangle, GraphicsUnit.Pixel);
}

return croppedImage;
}


The problem is that your original algorithm doesn't specify where to start cropping from. It therefore always starts from the origin, which is not what you want.






share|improve this answer
























  • What is destination rectangle?

    – Praveen VR
    Jul 10 '14 at 8:32













  • If you look at the example, you'll see that destinationRectangle defines the dimensions of the cropped image. sourceRectangle defines where to crop from. If sourceRectangle and destinationRectangle have different dimensions, the cropped image will be stretched/compressed.

    – Levi Botelho
    Jul 10 '14 at 9:01











  • @PraveenVR - Did this help you?

    – Levi Botelho
    Jul 10 '14 at 15:20











  • it works..Great.!!

    – Praveen VR
    Jul 11 '14 at 10:21











  • Fantastic - Glad to hear it :)

    – Levi Botelho
    Jul 11 '14 at 12:31














2












2








2







Use this code to crop your image.



static Bitmap CropImage(Image originalImage, Rectangle sourceRectangle, Rectangle destinationRectangle)
{
var croppedImage = new Bitmap(destinationRectangle.Width, destinationRectangle.Height);
using (var graphics = Graphics.FromImage(croppedImage))
{
graphics.DrawImage(originalImage, destinationRectangle, sourceRectangle, GraphicsUnit.Pixel);
}

return croppedImage;
}


The problem is that your original algorithm doesn't specify where to start cropping from. It therefore always starts from the origin, which is not what you want.






share|improve this answer













Use this code to crop your image.



static Bitmap CropImage(Image originalImage, Rectangle sourceRectangle, Rectangle destinationRectangle)
{
var croppedImage = new Bitmap(destinationRectangle.Width, destinationRectangle.Height);
using (var graphics = Graphics.FromImage(croppedImage))
{
graphics.DrawImage(originalImage, destinationRectangle, sourceRectangle, GraphicsUnit.Pixel);
}

return croppedImage;
}


The problem is that your original algorithm doesn't specify where to start cropping from. It therefore always starts from the origin, which is not what you want.







share|improve this answer












share|improve this answer



share|improve this answer










answered Jul 10 '14 at 6:35









Levi BotelhoLevi Botelho

19.3k43987




19.3k43987













  • What is destination rectangle?

    – Praveen VR
    Jul 10 '14 at 8:32













  • If you look at the example, you'll see that destinationRectangle defines the dimensions of the cropped image. sourceRectangle defines where to crop from. If sourceRectangle and destinationRectangle have different dimensions, the cropped image will be stretched/compressed.

    – Levi Botelho
    Jul 10 '14 at 9:01











  • @PraveenVR - Did this help you?

    – Levi Botelho
    Jul 10 '14 at 15:20











  • it works..Great.!!

    – Praveen VR
    Jul 11 '14 at 10:21











  • Fantastic - Glad to hear it :)

    – Levi Botelho
    Jul 11 '14 at 12:31



















  • What is destination rectangle?

    – Praveen VR
    Jul 10 '14 at 8:32













  • If you look at the example, you'll see that destinationRectangle defines the dimensions of the cropped image. sourceRectangle defines where to crop from. If sourceRectangle and destinationRectangle have different dimensions, the cropped image will be stretched/compressed.

    – Levi Botelho
    Jul 10 '14 at 9:01











  • @PraveenVR - Did this help you?

    – Levi Botelho
    Jul 10 '14 at 15:20











  • it works..Great.!!

    – Praveen VR
    Jul 11 '14 at 10:21











  • Fantastic - Glad to hear it :)

    – Levi Botelho
    Jul 11 '14 at 12:31

















What is destination rectangle?

– Praveen VR
Jul 10 '14 at 8:32







What is destination rectangle?

– Praveen VR
Jul 10 '14 at 8:32















If you look at the example, you'll see that destinationRectangle defines the dimensions of the cropped image. sourceRectangle defines where to crop from. If sourceRectangle and destinationRectangle have different dimensions, the cropped image will be stretched/compressed.

– Levi Botelho
Jul 10 '14 at 9:01





If you look at the example, you'll see that destinationRectangle defines the dimensions of the cropped image. sourceRectangle defines where to crop from. If sourceRectangle and destinationRectangle have different dimensions, the cropped image will be stretched/compressed.

– Levi Botelho
Jul 10 '14 at 9:01













@PraveenVR - Did this help you?

– Levi Botelho
Jul 10 '14 at 15:20





@PraveenVR - Did this help you?

– Levi Botelho
Jul 10 '14 at 15:20













it works..Great.!!

– Praveen VR
Jul 11 '14 at 10:21





it works..Great.!!

– Praveen VR
Jul 11 '14 at 10:21













Fantastic - Glad to hear it :)

– Levi Botelho
Jul 11 '14 at 12:31





Fantastic - Glad to hear it :)

– Levi Botelho
Jul 11 '14 at 12:31




















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