k31th less WHY; more WOT Site Developer 28,303 Member For: 16y 15d Gender: Male Location: Melbourne Posted 15/10/15 05:33 AM Share Posted 15/10/15 05:33 AM PNG is (generally) the same file size as JPG and lossless compression.I'm no professional detailer by any means, but all I do is just wash/wax my car frequently (if it's being driven, of course ) Link to comment Share on other sites More sharing options...
discostig Manual mode ________________________ All day, erryday Donating Members 13,798 Member For: 16y 5m Gender: Male Location: Probably above atmospheric pressure Posted 15/10/15 05:37 AM Author Share Posted 15/10/15 05:37 AM You sure it's for digital photos though? It will dominate JPG for line art and stuff like that with solid areas of one colour but I'm sure size blows out when each pixel is different to the last as in a photo. About to test some online tools anyway. 1 Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 28,303 Member For: 16y 15d Gender: Male Location: Melbourne Posted 15/10/15 05:42 AM Share Posted 15/10/15 05:42 AM Basically, yeah. Compression is a strange thing when it comes to imagery. It all has drawbacks in certain areas/colours/locations/pixel densities etc. Link to comment Share on other sites More sharing options...
discostig Manual mode ________________________ All day, erryday Donating Members 13,798 Member For: 16y 5m Gender: Male Location: Probably above atmospheric pressure Posted 15/10/15 05:45 AM Author Share Posted 15/10/15 05:45 AM Not much luck using the last image above. If you can shrink that spoiler pic below about 1.19MB in PNG format let me know The JPG is only 142KB. 1 Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 28,303 Member For: 16y 15d Gender: Male Location: Melbourne Posted 15/10/15 05:54 AM Share Posted 15/10/15 05:54 AM Hmmm, you're right, it doesn't compress that image very well All good... just use JPG if you're worried about picture sizes, I guess haha Link to comment Share on other sites More sharing options...
discostig Manual mode ________________________ All day, erryday Donating Members 13,798 Member For: 16y 5m Gender: Male Location: Probably above atmospheric pressure Posted 15/10/15 06:06 AM Author Share Posted 15/10/15 06:06 AM They start life as 5MB JPGs from the phone anyway!Car got rained on a bit...now looks dirty again :/ Or at least as dirty as silver gets muahaha 1 Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 28,303 Member For: 16y 15d Gender: Male Location: Melbourne Posted 15/10/15 06:08 AM Share Posted 15/10/15 06:08 AM ~1.4MB is good compression compared to 5M starting size TIF/TIFF LZW compression and PNG 1-9 (not 0) all compress it to around the 1.4-1.5MB size.Poor thing getting rained on Link to comment Share on other sites More sharing options...
discostig Manual mode ________________________ All day, erryday Donating Members 13,798 Member For: 16y 5m Gender: Male Location: Probably above atmospheric pressure Posted 15/10/15 06:17 AM Author Share Posted 15/10/15 06:17 AM I also drop the res from 5312x2988 to 1920x1080 or smaller though I aim for about 300KB or less per pic depending how I feel at the time. You'd be hard pressed to pick compression artefacts at 85% JPG quality in a digital camera pic. You had me all excited for a minute with your claims of lossless images at similar sizes 2 Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 28,303 Member For: 16y 15d Gender: Male Location: Melbourne Posted 15/10/15 06:19 AM Share Posted 15/10/15 06:19 AM I guess if you want something to show up perfectly clearly, then use a lossless compression (PNG/TIFF LZW) or use JPG if you just want to show something off in general and the JPG artifacts aren't an issue Link to comment Share on other sites More sharing options...
discostig Manual mode ________________________ All day, erryday Donating Members 13,798 Member For: 16y 5m Gender: Male Location: Probably above atmospheric pressure Posted 15/10/15 06:23 AM Author Share Posted 15/10/15 06:23 AM (edited) They come from a lossy original though. For maximum quality the source needs to change, I'd need to get a DSLR. Would rather a surge tank But as I said you can't pick it at high JPG save quality levels anyway. It's only when you drop it too much you start getting those ugly squares. JPG FTW Edited 15/10/15 06:27 AM by -Stever- 1 Link to comment Share on other sites More sharing options...
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