CSS Transform Skew [duplicate]
.red.box { background-color: red; transform: perspective( 600px ) rotateY( 45deg ); } Then HTML: <div class=”box red”></div> from http://desandro.github.com/3dtransforms/docs/perspective.html
skew
Detect if an OCR text image is upside down
Python3/OpenCV4 script to align scanned documents. Rotate the document and sum the rows. When the document has 0 and 180 degrees of rotation, there will be a lot of black pixels in the image: Use a score keeping method. Score each image for it’s likeness to a zebra pattern. The image with the best score … Read more
Executing cv::warpPerspective for a fake deskewing on a set of cv::Point
So, first problem is corner order. They must be in the same order in both vectors. So, if in the first vector your order is:(top-left, bottom-left, bottom-right, top-right) , they MUST be in the same order in the other vector. Second, to have the resulting image contain only the object of interest, you must set … Read more