14
votes
Is it possible to resize a large picture by file size and not resolution?
You can use ImageMagick:
convert original.tif -define jpeg:extent=9MB output.jpg
And quoting one of the comments:
IrfanView will allow you to do it, for those on ...
- 11.6k
13
votes
Accepted
Are there reasons to NOT use Adobe RGB in JPEG/TIFF files and CIELAB in TIFF files?
sRGB is the STANDARD
So stick with sRGB, it is the STANDARD for web content.
I fail to see any reasons to not use Adobe RGB when it comes to JPEG
files whatever you are posting them on web sites ...
- 572
13
votes
Is it possible to resize a large picture by file size and not resolution?
Late Edit
Let me qualify this 'simple' solution by saying that such as LinkedIn, same as any other social media site, will not care a jot what size an image is, so long as it falls over and under ...
- 23.2k
7
votes
Accepted
What metadata does RAW support that TIFF doesn't?
Well, first, the image will be demosaiced, white and black levels set, white balance adjusted, and a tone curve applied. With 16 bits to play with, most of this can be adjusted later without much ...
- 143k
6
votes
Adding Exif data to a tif increases the file size
I don't know how you added the exif data, but it could very well be that the application you used for this recompressed the file, and not with jpeg compression.
Windows explorer recompresses a jpeg-...
- 7,151
6
votes
Accepted
Printing digital photos: why do (most it seems) print shops only handle PDF not raster formats like PNG?
If you are asking about "print shops" in the sense of printing brochures, and other primary text-based material, then yes, I can understand that they only accept PDF: they want the most precise layout ...
- 3,161
5
votes
RAW to TIFF or PSD 16bit loses color depth
The 16-bits used to record raw data and the 16-bits (per color channel) used to record a demosaiced and gamma corrected TIFF or PSD are not used to represent the same exact thing in the same exact way....
- 175k
5
votes
Accepted
What application can rotate a TIFF without re-encoding it?
It is possible and even trivial but I am not aware of any application to do that task specifically.
There reason why the file size changes when rotated is that TIFF files are encoded losslessly as ...
- 103k
5
votes
Which TIFF image compression is better, LZW or ZIP?
Compression is something you can see yourself, so I'll focus on interoperability and long-term preservation.
The EU's Succeed 2014 Recommendations for metadata and data formats for online availability ...
- 161
5
votes
Is there a technical reason to go from RAW to an 8 bit TIFF?
The reasons why 8 bit TIFF is acceptable are:
raw files are typically linear and most used profiles (including AdobeRGB, sRGB, ProPhoto and whatnot) use gamma-encoding. Read more about it here. 8 bit ...
- 4,815
5
votes
What is lost when RAW is exported to TIFF for editing?
By exporting to TIFF (and any other format using RGB pixels) you lose the ability to use different demosaicing algorithms. Demosaicing influences noise reduction, picture sharpness and false color (...
- 5,060
5
votes
Best image format by Epson Scanner Software to use for Lightroom
The only two viable options in the list are JPEG and TIFF.
JPEG is fine for lossy compression, 8-bit/channel color, and smaller file sizes. I would use JPEG for paper originals that will not be ...
- 26.9k
5
votes
Accepted
What is this weird JPEG TIFF hybrid image and how can I save it from PS as a normal JPEG?
If you run the file through ExifTool, you'll see that it contains a huge number of Document Ancestors elements:
...
- 7,151
4
votes
Which TIFF image compression is better, LZW or ZIP?
For the fastest save times you want to go with no compression. Adding compression can multiply the time required to save a TIFF by 5x on 16-bit TIFF files and by 10-15x on 8-bit TIFF files. Storage is ...
4
votes
How low can I go on DPI with TIFF photos in a newsletter and still look good in an email?
DPI is meaningless in an electronic image, it's a print specific value, see What does DPI mean?
In an electronic image, DPI is just metadata, a "hint" for the print. Specifically, changing that value ...
- 7,151
4
votes
Pixels and Subpixels usage in TIFF and RAW
Basically, a RAW file stores data directly from the sensor of your camera. Most DSLR are using what is called a Bayer filter (https://en.wikipedia.org/wiki/Bayer_filter) to retrieve information about ...
- 4,163
4
votes
Accepted
What are the benefits of LZW compression for TIFFs?
For me the benefits can be:
less disk space (compressed data)
less time to load (but plus time to decompress)
same for write
But I will have in mind few negative points:
compatibility, it's ...
- 11.6k
4
votes
GIMP. TIFF. Color profile sRGB IEC61966-2.1 and embedded color profile GIMP - built-in sRGB
Don't convert - at all.
At import tell it not to convert.
At export tell it not to convert.
sRGB IEC61966-2.1 is "industry standard" RGB used for the web.
Any time you do colour-space ...
- 23.2k
3
votes
When converting from Fujifilm .raf to .tiff, why is there an option for dpi?
There is no real "DPI" in a photo. Inches of what? If it's a macro photography you can have tens of thousands of pixels for one inch of real life object, while pixels in Hubble images can be ...
- 20.6k
3
votes
Accepted
How and why does VueScan's TIFF and DNG output differ?
The image pixel data contained in raw TIFF and DNG files produced by VueScan is identical. This can be proved by extracting and comparing that data. This can be done using Linux ...
- 403
3
votes
Accepted
How do I find out whether TIF images have gamma correction or not?
When you view the image with a normal image viewer, is it mostly dark? If not, a gamma curve has been applied. That is, does it look like this?
That's what you'll get with a pure dump of linear ...
- 143k
3
votes
Are there reasons to NOT use Adobe RGB in JPEG/TIFF files and CIELAB in TIFF files?
Adobe RGB is converted to sRGB in cheap monitors right?
Not always. A lot depends on whether the color profile is properly embedded in the image file and whether or not the rendering application pays ...
- 175k
3
votes
Accepted
Exif & TIFF dates - why would they be months different?
There are basically three important time stamps in there, the Date/Time Original, the Create Date, and the ...
- 3,683
3
votes
Lossless compressing TIF file
Programs normally offer LZW compression for TIFF image files, which is 100% lossless. You should first make sure that your program that opens and views them can handle opening LZW compression (try ...
- 12.9k
3
votes
Accepted
Why do JPEG and TIFF versions of image look different?
The differences you see are caused by different interpolation algorithms used by the viewers you're using when showing images at greater than 100% magnification. Some interpolation algorithms have a ...
- 26.9k
3
votes
Accepted
Does a TIFF file using JPEG compression have the same 65535 x 65535 pixel limitation as a JPEG file?
At least in theory, the TIFF file format can handle bigger images. Here's a quote from a technical description of the file format:
The ISO JPEG standard only permits images up to 65535 pixels in ...
- 224
3
votes
Accepted
Why focus stacked tiff so large?
Did you save it with Layers?
Photoshop will save layers to tiff even if they are switched off in the app. You must either delete the layers if you never need them back [or are not going to save the ...
- 23.2k
2
votes
Accepted
Enable TIFF compression in Canon Digital Photo Professional 4
Is there any way to enable lossless TIFF compression in Canon Digital Photo Professional?
No.
If not, have Canon explained why they don't support TIFF compression?
No.
Do professional ...
- 175k
2
votes
How do I compress my TIFF files to JPEGs of a given size?
scotbb answer is good. I like he is using math formulas, but I will complement that.
In my opinion that person on the lab is telling you mumble jumble!
Lets put this simple: 16x24 inches
at 300ppi ...
- 24.1k
2
votes
How do I compress my TIFF files to JPEGs of a given size?
What about final resolution? [80 megapixels max] How to convert from one to the other?
Your print dimensions of 16" x 24" means the aspect ratio of your print is ...
- 32.3k
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