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It’s difficult to say how many digital photos people produce every year, but the total number is estimated at more than 1 trillion per year. That huge amount of photos mostly come from mobile phones and quite often these images are stored in JPEG format. Apart from that, many industrial cameras also generate jpegs in huge volumes. Image extension .jpg is the most frequent choice, and this is actually a default setting in many smartphones and cameras. Abbreviation JPEG means both image format and lossy compression algorithm which is utilized for image encoding and decoding.