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;

    }

edited Nov 29 '18 at 2:27

Cœur

19.3k9116155

asked Jul 10 '14 at 6:26

Praveen VR

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

add a comment |

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;

    }

edited Nov 29 '18 at 2:27

Cœur

19.3k9116155

asked Jul 10 '14 at 6:26

Praveen VR

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

add a comment |

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;

    }

edited Nov 29 '18 at 2:27

Cœur

19.3k9116155

asked Jul 10 '14 at 6:26

Praveen VR

92121229

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

edited Nov 29 '18 at 2:27

Cœur

19.3k9116155

asked Jul 10 '14 at 6:26

Praveen VR

92121229

edited Nov 29 '18 at 2:27

Cœur

19.3k9116155

asked Jul 10 '14 at 6:26

Praveen VR

92121229

edited Nov 29 '18 at 2:27

Cœur

19.3k9116155

edited Nov 29 '18 at 2:27

Cœur

19.3k9116155

edited Nov 29 '18 at 2:27

Cœur

19.3k9116155

asked Jul 10 '14 at 6:26

Praveen VR

92121229

asked Jul 10 '14 at 6:26

Praveen VR

92121229

asked Jul 10 '14 at 6:26

Praveen VR

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

add a comment |

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

add a comment |

1 Answer
1

active

oldest

votes

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.

answered Jul 10 '14 at 6:35

Levi Botelho

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

add a comment |

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1 Answer
1

active

oldest

votes

1 Answer
1

active

oldest

votes

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.

answered Jul 10 '14 at 6:35

Levi Botelho

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

add a comment |

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.

answered Jul 10 '14 at 6:35

Levi Botelho

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

add a comment |

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.

answered Jul 10 '14 at 6:35

Levi Botelho

19.3k43987

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.

answered Jul 10 '14 at 6:35

Levi Botelho

19.3k43987

answered Jul 10 '14 at 6:35

Levi Botelho

19.3k43987

answered Jul 10 '14 at 6:35

Levi Botelho

19.3k43987

answered Jul 10 '14 at 6:35

Levi Botelho

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

add a comment |

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

add a comment |

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