Legacy ImageMagick Discussions Archive

Thanks to both of you for your ideas. Will try, as you both suggested, compositing with a blurred copy, and see how much time it takes. snibgo, is the black-and-white image in your post an example of the b1.png in your code? The slides were digitized with a CanoScan MarkII. This tool seems to be ...

Hello - I have a collection of digitized slides, many of which have scratch or dust marks. Example: http://www.mathnmaps.com/test/dirty_slide2.jpg Would like to find a way to get the worst of the marks out. Is there a way, for example, to select a rectangle or polygon, and replace pixels in its ...

Thank you for the information! It turns out that the the Debian package "libjpeg-turbo-progs", including "jpegtran", is already installed on my system (Ubuntu 14.04) -- possiblly included as a depency to imagemagick. Currently working with some films scanned into JPG; some of the scans were mis ...

Is it correct to assume that rotating a JPEG image by 90 or 180 degrees ("convert -rotate 180") or flipping to a mirror image ("convert -flip") involve only the transposition of pixels, and therefore involve no loss in image quality ? Thank you, and kindly forgive the naivete of this question ...

In "display", save the file as PNG. Then "identify file.png" will show the coordinates. Yes, this does work for a simple crop. Thank you. What about recording the input to a "draw" command from the "Image Edit" menu? Here is a sample scenario: In a slide presentation, might want to annotate a ...

Hello - I frequently use the "Transform" and "Image Edit" submenus from the "display" GUI to make quick edits to a graphic file. However, sometimes it is necessary to make identical edits (for example, crop the same size window at the same location, or draw the same line at the same location) for a ...