Image Crop using aspect ratio [Answered]RSS

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  shobana raja

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  Image Crop using aspect ratio

  Jan 19, 2012 04:27 AM|shobana raja|LINK

  How to crop and save a image with aspect ratio 4:3 in asp.net C# 

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  mudassarkhan

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  Re: Image Crop using aspect ratio

  Jan 19, 2012 04:38 AM|mudassarkhan|LINK

  Refer these

  http://www.switchonthecode.com/tutorials/csharp-tutorial-image-editing-saving-cropping-and-resizing

  http://stackoverflow.com/questions/4648456/save-image-to-file-keeping-aspect-ratio-in-a-wpf-app

   

   

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  shobana raja

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  Re: Image Crop using aspect ratio

  Jan 19, 2012 05:04 AM|shobana raja|LINK

  i need the center crop of the image like in the microsoft picture manager.

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  virazv

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  Re: Image Crop using aspect ratio

  Jan 19, 2012 05:11 AM|virazv|LINK

  Check out this article

  http://weblogs.asp.net/gunnarpeipman/archive/2009/11/03/using-asp-net-and-jcrop-to-crop-images-online.aspx

  V.
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  shobana raja

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  Re: Image Crop using aspect ratio

  Jan 19, 2012 05:58 AM|shobana raja|LINK

  Do anyone know how to change (any)width and (any)height to standard 4:3 ratio ???????

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  Arunmhn

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  Re: Image Crop using aspect ratio

  Jan 19, 2012 06:09 AM|Arunmhn|LINK

  Hi,

  There are lots of programs with which you can actually resize/crop an image in C#, the earlier posts can help you with this, coming to the aspect ratio part 4:3 is nothing but standard 1024 X 768 pixels... So in your program you can always set the width to 1024 and height to 768

  Here is the link for all aspect ratios http://en.wikipedia.org/wiki/Display_resolution

  And remember aspect ratios are calculated by find the greatest common divisor of the resolution.. in this case the 256 is the greatest common divisor of 1024 and 768

  256 * 4 is 1024 and 156 * 3 is 768.... So you can very well go ahead and use the above programs to get to the 4:3 ratio...

  Thanks

  Arun

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  shobana raja

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  Re: Image Crop using aspect ratio

  Jan 19, 2012 06:38 AM|shobana raja|LINK

     Hi,

        Double aspectRatio = 4.0 / 3.0;
        int newHeight = (int)((imge.Height) * aspectRatio);
        int newWidth = (int)((imge.Width) * aspectRatio);
        int cropY = (int)((imge.Height) / 2.0 - newHeight / 2.0);
        int cropX = (int)((imge.Width) / 2.0 - newWidth / 2.0);

        i have done like this but this is not converting to standard ratio 4:3 and even x and y is not 

       helping to crop image at the center. Can any one pls help.???

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  eprovidere

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  Re: Image Crop using aspect ratio

  Jan 19, 2012 08:05 AM|eprovidere|LINK

  http://www.dotnetthoughts.net/2009/12/07/image-cropping-in-asp-net-with-jquery/

  http://geekswithblogs.net/SanjayU/articles/asp.net-image--photo-cropper-in-c.aspx

  Java Array
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  sirdneo

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  Re: Image Crop using aspect ratio

  Jan 19, 2012 08:09 AM|sirdneo|LINK

  See this link, it will guide you how you can generate good quality thumbnail and image scaling:-

  
  

  http://zeeshanumardotnet.blogspot.com/2010/06/generate-high-quality-thumbnail-images.html

  Thanks,
  Zeeshan Umar
  ~Please Mark As Answer, one or multiple posts, which helped you. So that it might be useful for others~
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  shobana raja

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  Re: Image Crop using aspect ratio

  Jan 20, 2012 12:37 AM|shobana raja|LINK

  I need a method to crop using aspect ratio like microsoft picture manager. I need the method to convert original image with new height and new width.

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  sirdneo

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  Re: Image Crop using aspect ratio

  Jan 20, 2012 04:16 AM|sirdneo|LINK

  have you tried the code which I shared, i am able to generate good quality thumbnails with that code.

  Thanks,
  Zeeshan Umar
  ~Please Mark As Answer, one or multiple posts, which helped you. So that it might be useful for others~
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  shobana raja

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  Re: Image Crop using aspect ratio

  Jan 20, 2012 04:38 AM|shobana raja|LINK

  An error while saving the thumbnail image 

  "A generic error occurred in GDI+."

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  virazv

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  Re: Image Crop using aspect ratio

  Jan 20, 2012 05:27 AM|virazv|LINK

  Check out this thread http://forums.asp.net/t/1395596.aspx/1

  V.
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  shobana raja

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  Re: Image Crop using aspect ratio

  Jan 20, 2012 06:54 AM|shobana raja|LINK

  Thanks alot it worked