Image ConvertersLesson 226Free preview

JPG to BMP

This lesson is part of Web Developer Tools · All levels

Summary

Conversion of JPG to BMP stores photos back to a generally uncompressed bitmap, so that the size can be many times larger. The decoding result pixel value is maintained, but the existing JPEG compression artifacts remain visible. BMP format is more suitable for long-term compatibility needs than web or email distribution.

Key points

BMP stores raw pixels so the file size swells
There is no improvement in quality because the source of the JPG is already lost
BMP 24-bit generally does not store alpha
JPEG artifacts remain on the resulting pixels of conversion
Avoid BMP for web, email, or long-term storage that saves space

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