July 2017
Beginner to intermediate
715 pages
17h 3m
English
Content preview from Java: Data Science Made Easy
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Converting images to different formats
Another common operation is to convert an image that uses one format into an image that uses a different format. In OpenCV, this is easy to accomplish as shown next. The image is read in and then immediately written out. The extension of the file is used by the imwrite method to convert the image to the new format:
Mat source = Imgcodecs.imread("cat.jpg"); Imgcodecs.imwrite("convertedCat.jpg", source); Imgcodecs.imwrite("convertedCat.jpeg", source); Imgcodecs.imwrite("convertedCat.webp", source); Imgcodecs.imwrite("convertedCat.png", source); Imgcodecs.imwrite("convertedCat.tiff", source);
The images can now be used for specialized processing if necessary.
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