Converting image from Jpeg to Tiff
Jan 18, 2023 10:22:23 #
JJJLSN1
Loc: North Carolina
If an image was inadvertently shot in Jpeg, is there any benefit in converting it into a tiff image?
Jan 18, 2023 10:25:45 #
Jan 18, 2023 10:35:37 #
JJJLSN1 wrote:
If an image was inadvertently shot in Jpeg, is there any benefit in converting it into a tiff image?
No.
"Why" you might ask?
What is a JPEG? A JPEG is an 8-bit image file, captured from a digital camera (or scanner) that started with a sensor capable of 12-bit or higher color data. The storage format, after discarding the higher bit-depth color data, is a reversible compression of the data in a way that minimizes the byte-size of the file.
What is a TIFF. A TIFF is an uncompressed image file, with options to store as 8-bit or 16-bit. Here, the file is not compressed for storage, so the file is much larger than the corresponding JPEG, even though is contains no more data that the source JPEG.
The removal of the color data when creating the 8-bit JPEG is permanent. Resaving that file from 8-bit JPEG to 16-bit TIFF does not magically create that missing data. You can't bake a cake, forgetting to include 1-cup sugar, and magically add that sugar back into the cake later, aka calling it the 16-bit version of the cake.
Work with the JPEG as a JPEG, being sure to write any / all edits into a new copy of the file. Never overwrite the original. That's your best bet going forward.
Jan 18, 2023 10:36:15 #
julian.gang wrote:
TIFF is the best for printing!...Julian
What if your printer doesn't accept TIFFs? That would make it the worst ...
Jan 18, 2023 10:41:22 #
JJJLSN1 wrote:
If an image was inadvertently shot in Jpeg, is there any benefit in converting it into a tiff image?
JJJLS1!
Definitely! You have more pixels in a larger file to play with. The file is more stable as it doesn't have to compress and decompress with each opening and closing, theoretically with a loss of quality. It's also a backup for your jpg!
Be well! Ed
Jan 18, 2023 10:46:14 #
elee950021 wrote:
JJJLS1!
Definitely! You have more pixels in a larger file to play with. The file is more stable as it doesn't have to compress and decompress with each opening and closing, theoretically with a loss of quality. It's also a backup for your jpg!
Be well! Ed
Definitely! You have more pixels in a larger file to play with. The file is more stable as it doesn't have to compress and decompress with each opening and closing, theoretically with a loss of quality. It's also a backup for your jpg!
Be well! Ed
More pixels?? What?
Opening and closing changes the file?? What?
This is utter BS. Completely and factually WRONG.
Alas, so completely UHH ....
Jan 18, 2023 11:18:03 #
kufengler
Loc: Meridian, Idaho 83646
JJJLSN1 wrote:
If an image was inadvertently shot in Jpeg, is there any benefit in converting it into a tiff image?
I use MS Paint or IrfanView to save .jpg to .tif or other formats.
This image I just changed.
.jpg
.tif
Jan 18, 2023 11:55:30 #
JJJLSN1 wrote:
If an image was inadvertently shot in Jpeg, is there any benefit in converting it into a tiff image?
No.
Some people like tif because it can handle 16 bit colors (watch out -- there are also 8 bit tif files) and you don't have to deal with jpg compression (a non-issue as long as the compression is reasonably low).
In your case, you are starting with an 8 bit image (jpg) so converting it to tif will do absolutely nothing useful. And it will increase the file size.
The best thing is to always shoot in raw. Then you have the maximum amount of information in the file to deal with. Switching between raw and jpg can lead to inadvertent jpgs when you really wanted raw. Leave the camera set to raw. Always.
It is SO easy to extract the jpg preview from the raw file, there's no reason to shoot jpg.
Since you have a jpg, import it into a nondestructive editor and do whatever edits you want to do. Leave the original jpg as your original file.
Jan 18, 2023 13:08:02 #
kufengler wrote:
I use MS Paint or IrfanView to save .jpg to .tif or other formats.
This image I just changed.
This image I just changed.
The question isn't whether a .jpg can be converted to a .tif. It's whether there's any benefit to doing it.
Jan 18, 2023 13:11:20 #
JJJLSN1 wrote:
If an image was inadvertently shot in Jpeg, is there any benefit in converting it into a tiff image?
By saving in JPG format you've already lost a whole lot of image data. Converting an 8bit to 16bit format might sound good but gains you nothing.
bwa
Jan 18, 2023 13:18:58 #
elee950021 wrote:
JJJLS1!
Definitely! You have more pixels in a larger file to play with.
Definitely! You have more pixels in a larger file to play with.
Totally false.
For example, if your camera takes a 6000x4000 picture, you will have a 24 megapixel picture regardless of format. Raw, png, Tiff, whatever, still remains 24mp's.
elee950021 wrote:
JJJLS1!The file is more stable as it doesn't have to compress and decompress with each opening and closing, theoretically with a loss of quality.
Might have been an issue before digital pictures, like with an 8088xt. Jpg's compress and decompress today, even yesterday incredibly fast, with zero degradation unless you are changing the file and saving on top of itself, something normally not done to an original jpg. It can be done however, often many times before any significant degradation occurs.
elee950021 wrote:
JJJLS1!
It's also a backup for your jpg!
It's also a backup for your jpg!
Yeah but why? Just back up the jpg, that's all that's needed.
Jan 18, 2023 13:54:16 #
This problem is why when I get a new camera the first thing I do is set it for raw.
Yes, it is more work to get an image to post or send to someone, but after you get used to it, you don't even notice the extra steps.
Yes, it is more work to get an image to post or send to someone, but after you get used to it, you don't even notice the extra steps.
Jan 18, 2023 19:19:21 #
bwana wrote:
Converting an 8bit to 16bit format might sound good but gains you nothing.
bwa
bwa
If you are going to make changes in the picture, saving it along the way, you would be better off saving it as a TIF.
Jan 18, 2023 19:45:01 #
rehess wrote:
If you are going to make changes in the picture, saving it along the way, you would be better off saving it as a TIF.
Not necessarily. If you employ a nondestructive editor, creating a large TIFF is a waste of time and space.
Jan 18, 2023 19:55:41 #
rehess wrote:
If you are going to make changes in the picture, saving it along the way, you would be better off saving it as a TIF.
If you are going to make changes later, use a nondestructive editor and always start from the original image, even if it’s a jpg. Then your image never has more than two jpg compressions.
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