Lossless JPEG
Apr 4, 2019 12:38:36 #
Has anyone heard of the latest news about the lossless JPEG program that has been developed?
Apr 4, 2019 12:50:21 #
Lossless jpg files have been around since 1993. To which program are you referring specifically?
--Bob
--Bob
BobbyT wrote:
Has anyone heard of the latest news about the lossless JPEG program that has been developed?
Apr 4, 2019 12:58:41 #
rmalarz wrote:
Lossless jpg files have been around since 1993. To which program are you referring specifically?
--Bob
--Bob
I imagine he is talking about the latest iteration like he said.
Apr 4, 2019 13:05:54 #
Apr 4, 2019 13:43:45 #
fantom wrote:
I imagine he is talking about the latest iteration like he said.
Do you know which one that is and where'd you get information about it?
Apr 4, 2019 13:48:24 #
Strodav
Loc: Houston, Tx
You might want to look at tiff files, which can be uncompressed and is a widely accepted standard.
Apr 4, 2019 14:03:59 #
Apr 4, 2019 15:09:18 #
Rich1939 wrote:
Do you know which one that is and where'd you get information about it?
Nope, I was hoping that other poster who claimed to be aware of a 1993 start date would enlighten us but I guess not.
Apr 5, 2019 06:07:04 #
Apr 5, 2019 07:37:18 #
BobbyT wrote:
Has anyone heard of the latest news about the lossless JPEG program that has been developed?
I've heard about a new JPEG, but I have no details.
Apr 5, 2019 07:42:54 #
lehighjack
Loc: somewhere in FL
I purchased a program (app?) named, "JPGminiPro". The app could be a bit less clunky, but, IT WORKS!!I do some Real Estate photography and use it to send my picture files to MLS (The MLS has a maximum of 35 images and size limits), prospects and in my Newspaper Advertisements. The app has an "optimize setting that is interesting as the final size from a 24 mg file can range from less than a megabyte to as much as six or seven MG. One may also dictate end size in terms of Large, Medium or Small or length or height. (1368 x 786, for example). On HD Monitors I cannot discern any difference in quality. Pictures used in my newspaper Ads print well, the same picture reduced from over 20 MG to 3.31 MG and 265 KB, appeared the same when in print.
I believe there may be a free trial and it is sold by B & H, directly and other online retailers.
It really works, BTW I printed a 20 + MG portrait on my PRO 100 and the same picture reduced by "JPGminiPro" to 3.31 MG in a 6.5" Height X 9.6" size, glossy and could not find any difference in quality.
I believe there may be a free trial and it is sold by B & H, directly and other online retailers.
It really works, BTW I printed a 20 + MG portrait on my PRO 100 and the same picture reduced by "JPGminiPro" to 3.31 MG in a 6.5" Height X 9.6" size, glossy and could not find any difference in quality.
Apr 5, 2019 09:46:00 #
Do not sweat it. Convert the original file to Tiff and automatically it is loseless.
Apr 5, 2019 10:28:38 #
Apr 5, 2019 11:20:07 #
Last I looked, and for me that is a year or so ago, Wikipedia had a purty good article on JPEG. A JPEG is a discrete cosine transform of the bit data and the algorithm has been honed and rehoned over the years. I suspect there is no 1:1 forward and 1:1 reverse to be expected. But nearly 1:1 within error bounds, maybe yes.
Apr 5, 2019 13:20:34 #
camerapapi wrote:
Do not sweat it. Convert the original file to Tiff and automatically it is loseless.
Which would be great if there weren't a number of TiF formats, some of which allow you to choose a "compression ratio"
Tif....Tagged information file... the most highly misunderstood image format for a few decades now. When I started using TIFF or Tif in the late eighties, there were over forty variants of the format. Many of which were complete with compression availability.
Besides that, the files are too big in the TIFF(Tif) format.
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