It's a lossless format which does not support transparency nor animation and stores pixel data in uncompressed fashion. By default Optidash API will use the original delay value extracted from the input file.īMP is a Microsoft Windows standard format and was developed as a device-independent bitmap (DIB) format that will allow Windows to display the bitmap on any type of display device. You may additonally pass a delay parameter which takes a positive float and describes the delay in seconds between the frames. To enforce APNG output, use apng as a format value within the output hash.
#ASTROIMAGER OUTPUT FORMAT FULL#
The first frame of an APNG image is recognized as a normal PNG stream, so even browsers without full APNG decoding capabilities will display the first frame of an APNG file correctly. APNG format is currently supported by Firefox, Chrome, Opera, Safari and iOS Safari browsers which translates to ~80% of global browser reach. It supports both transparency and animation. APNGĪPNG stands for Animated Portable Network Graphics and is an extension of the original PNG format. For example, if you supply a JPEG image for processing and expect a progressive JPEG output file, you don't have to provide any additional settings in your request JSON. You only have to explicitly specify output format if you're not satisfied with our default mappings.
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