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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 Windows who are afraid of the ...
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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 ...
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  • 19.7k
12 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 ...
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11 votes
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Why does file size increase so much when converting from RAW to TIFF?

TIFF is a container format which supports a collection of other standards and like any container what's in it will be entirely down to what you (or whoever wrote the TIFF export you're using) has ...
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7 votes
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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 ...
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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-...
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  • 6,770
6 votes
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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 ...
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  • 3,113
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 ...
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5 votes

Is there a technical reason to go from RAW to an 8 bit TIFF?

The only advantages to saving your RAW files as 8-bit is for memory conservation or if certain tools only work with 8-bit images. There is no advantage from a quality point of view, if you're going to ...
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  • 117k
5 votes
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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 ...
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  • 101k
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....
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  • 168k
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 ...
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5 votes
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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: Document Ancestors : 0, 0000A6C7815905497C2762FB3073AC1B, ... ... Warning ...
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  • 6,770
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 ...
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  • 6,770
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 ...
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  • 4,103
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 ...
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4 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 ...
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  • 151
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 ...
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  • 9,280
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 ...
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  • 19.7k
3 votes
Accepted

Is there a technical reason to go from RAW to an 8 bit TIFF?

RAW files are 12 ~ 14 bits. I'm pretty sure he knows that. Why an 8 bit TIFF? This was a given for him, so I'm puzzled. The higher bit depth is certainly safer for major corrections of exposure, ...
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  • 5,115
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 ...
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  • 16.3k
3 votes
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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 ...
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  • 140k
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 ...
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  • 168k
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 Modify Date. The ones near the start are important. The ones near the end would be in the ...
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  • 3,309
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 ...
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  • 12.5k
3 votes
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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 ...
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  • 26.3k
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 ...
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  • 224
3 votes
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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 ...
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  • 19.7k
2 votes

Will transfering a TIFF to a photolab via ROES software cause it to lose quality?

If you have experience of sending files for print in the past and receiving prints that are "muddy" and don't match your expectations, the culprit here is "colour management", not the file format. The ...
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  • 8,929
2 votes
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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 ...
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