Image formats - jpg, bmp, png, or tif
daveso
Posts: 7,062
in The Commons
jpg, bmp, png, or tif ? Which format do you most often save your images in, and why?
I tend to use jpg quite often when I use them for this site, smaller overall memory needed, and so forth, but I save as PNG from DS ...I have no idea why though.
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I do everything as a png because I render everything in layers, so I get the alpha channel to comp things together in after effects.
JPG is lossy, so it looses some finer details
I usually render anything I care about to PNG, but I do postwork on 32-bit EXR canvases. Postwork output usually goes JPGs for posting online.
Like a lot of previous posters, I usually render to png, and create a jpg version of the ones I post online.
I render to tif which gives the transparency for layering images in postwork. But don't ask me why I use tif instead of png, it's just a habit I developed years ago!
Tiff is a less solid format tha PNG - I've not seen any compliants about those produced by Daz Studio but I have had readability issues in the past when trying to open a Tiff from one application in another.
Oh, that's interesting. I've certainly never had a problem with the ones I've saved from DS, but maybe I should make the switch to PNG to be on the safe side.
I save raw renders as PNG files, do my post work in PSD files and publish my finished work in high-quality JPG.
Ditto.
And the only reason I convert is because the site to which I'm posting squawks about the image file being too big to upload, otherwise I'd just upload the png.
png as they are uncompressed but I don't post online much at all.
PNG is a compressed format (I dug out the standard while hoping to write a file reader for my programs, but understanding the various compression algorithms was beyond me). PNG uses lossless compression which means it doesn't go as small as a jpg.
Regards,
Richard.
PNG for render and textures.
PNG with alpha channel or multilayer PDN (Paint .NET) when I customize textures by combining several images.
It wasn't mentioned by the OP, WebP is also an alternative. "Excellent choice for both images and animated images. WebP offers much better compression than PNG or JPEG with support for higher color depths, animated frames, transparency etc. ..." (source - https://developer.mozilla.org/en-US/docs/Web/Media/Formats/Image_types
thats an interesting one. I've seen it a bit on the web and have saved images from web pages in that format, but I've found it is not accepted everywhere. A lot of sites will only allow jpg.
I render and save *.bmp for public i take *.jpg
One of things that I discovered a couple of years ago when WebP starting showing up as the default file type of some of the newer products is that the forum don't accept WebP as an upoload file type. :( I download the product image when I dowload the content zips and I now change the download file type of WebP images to JPG.
Thanks, that's what I meant. Similar to text compression, more or less.
PNG if it's something I care about or I need layers, JPEG if it's not important or I need to keep the file size down on... so mostly JPEG.
I used to get that on Macs sometimes, usually for really old clip art files, I just assumed it was something like a version or platform issue...
can anyone explain why do i got image formats in photo references file?
What do you mean?
It does give way smaller images, it just still has some drawbacks in that it still isn't carried by every browser (most gladly do now, but not everybody updates their software), some non-updated OS-es may have trouble with it as well, and finally, there is still some image editing software that doesn't support it, which means you'd treat it as a final format, not meant for further editing.