EMGU C# Image Extraction

I am looking for someone who can write some code to extract the rectangle card out of a complex image. Attached are a couple of the more difficult items. I am assuming that someone has already done something like this and code reuse is welcome. ------------------ 5/16 - Adding more detailed requirements: ------------------ This project is to extract cards (rectangles) from their contained cases. - The current dataset has 60 cards that are the same size, shape and case. - Some of the cards are slightly rotated within the case +-1 degree. - The deliverable should be C# code that can be added to an existing project. - The algorithm should work with each item in the dataset. - The algorithm should take less than 10 seconds but duration is not critical. - Some of the more difficult items have been attached. - As a fallback, the algorithm can produce up to 3 choices for a user to manually select from. - The edges of the contained card should be exact. - The card should be extracted into a new deskewed, properly oriented image. - All cards should be very close to the same height and width aspect, but may vary by resolution. Notes: - Some of the cards have very visible edges and are easy to extract with OpenCV. - Others have backgrounds that are very close to the background and are more difficult to extract. - Some cards have multiple colors, making the borders harder to detect. - Addtional projects will be created after this one is complete. It is part of a processing workflow.