# Does importing .jpg sequence instead of .png reduce ram requirements?

**URL:** <https://discourse.slicer.org/t/does-importing-jpg-sequence-instead-of-png-reduce-ram-requirements/9173>\
**Category:** Support\
**Created:** [November 15, 2019, 10:54pm UTC](https://discourse.slicer.org/t/does-importing-jpg-sequence-instead-of-png-reduce-ram-requirements/9173 "2019-11-15T22:54:00Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![NoobForSlicer](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/noobforslicer/32/10900_2.png) [@NoobForSlicer](https://discourse.slicer.org/u/NoobForSlicer)\
**Post date:** [November 15, 2019, 10:54pm UTC](https://discourse.slicer.org/t/does-importing-jpg-sequence-instead-of-png-reduce-ram-requirements/9173/1 "2019-11-15T22:54:00Z")

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In other words, does Slicer 3D dismantle those images and insert them pixel by pixel with 8 bit channels (24 bits total) irrelevant of what format was used? Or does Slicer somehow preserve the format and thus Jpg sequence imported would require less ram?

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**Author:** ![pieper](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/pieper/32/8_2.png) [@pieper](https://discourse.slicer.org/u/pieper)\
**Post date:** [November 16, 2019, 1:24pm UTC](https://discourse.slicer.org/t/does-importing-jpg-sequence-instead-of-png-reduce-ram-requirements/9173/2 "2019-11-16T13:24:59Z")

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No, png vs jpg compression only matters for storage to disk. If the images are the same resolution they will take the same amount of memory once uncompressed.