grunnvms

Google has introduced JPEGLI, a new better type of JPEG that seems to be compatible with existing JPEG decoders. It seems to improve the quality of the JPEG images, and at the same time give a 35% better compression. It's also 10 bit, instead of 8 bit. It's an open source library, so Serif could use it without license problems. Could it be useful to implement JPEGLI in Affinity Photo etc. ?

Same with me, no more problems !

I am referring to the Selection Tool cursor problem. I have hardware acceleration active, but Affinity is using the Intel GPU of the CPU, not the Nvidia card.

I have the same problem with Windows 11. It seems to be Windows related. I have the problem on my Windows 11 notebook, but not on my Windows 10 notebook.

You're right, a pure 1 bit Black & White picture would be the best result. With regard to the Black & White profile I found, I now know the solution of the puzzle why I have it and others don't All .icc profiles are stored in directory x:\Windows\System32\spool\drivers\color , no matter which software package provided the profile. So most likely the Black & White profile came from another software package. I opened the Black & White .icc profile with notepad, and found that it came from Adobe. It is a valid profile for Affinity Photo, so that is why I found it. When you set up a new document, you can use the profile. It's the conversion that doesn't work so well, the pages that I previously attached turn up almost black.

Thank you all for the advises, I will try them out. That leaves two other matters. What is the function of the Black & White profile in the grey/8 and grey/16 ICC profile settings suppose to do ? I can't find any documentation. If a simple program, like Photoshop Elements has a standard conversion tool for this kind of work, wouldn't it be nice to have something similar in Affinity Photo ?

I do know how to scan such documents myself, with proper scanning software these problems are easy to prevent. The documents that cause the problems come from for instance the newspaper archive of the Royal Library, or in this case from a professional book scanner at the National Archives. These type of scanners are more like digital photo cameras, you put the paper or book below the camara, it will automatically detect the contours, and take a picture. I have attached such a scan, plus a newspaper scan.

I agree. Just like pdf, Open Document Format is an official ISO standard, while DocX is a propiarty standard. In fact, you can set MS Word to produce .odt files as standard. Governments may require Open Office documents as standard form.

Is there a simple way to convert scanned old b/w documents to pure b/w documents? Usually the paper is yellow, the text on the other side of the page shines through a bit etc. In Photoshop elements there is a very simple 'newspaper' conversion setting for this if you want to change an RGB document to a b/w document. All the text will be made very black, and everything else will be made white. second question. In the Convert Format / ICC profile setting, I can convert the colour profile to Grey/8, and the profile to Black and White. I had hoped that this would do the trick, but instead I get an almost entirely black page.

Indeed, it is the tile setting ! It adds extra layers in the tiff file, that can be used for all kinds of reasons. Google for " tiff tiles", and you will find a long explanation. Removing the tile setting, and just export as uncompressed will indeed result in a file size comparable with the output of Affinity Photo or Photoshop. Thanks !!

Hi Walt, No problem. These are the three files, and I made no adjustments in Affinity Photo to make them 1:1 comparable. Affinity test.afphoto Affinity test AP.tiff Affinity test CO.tif

This is what I would do. If your work has to be printed on a commercial printer, get the CMYK colour profile for that printer, and add it to the profiles of Affinity. The document you are setting up in Publisher should be set up with this profile. Do all the work on the photos in Affinity Photo, and when you're ready, convert the photo to CMYK using the colour profile of the printer (document > convert). You can see the result. Now you can import the photos in publisher directly.

Hi James, No, I had compression disabled with Capture One as well as with Affinity, I checked. Unless of course there is a little bug in Affinity that makes it compressing the image even if compression is disabled. What I meant to say is that TIFF is a lossless file type, contrary to JPEG. That's why made the choice for 16 bit TIFF. I also know that compressing a TIFF file is lossless as well, and that specifically for 16 bit TIFF you should always use ZIP, and never LZW, since LZW can make the resulting fille bigger instead of smaller, at least so I've read. By the way, when exporting a document the default pixel format is visible, in my case RGB 16 bit. However, the ICC profile setting is empty, I would expect to see " use document format" as default.

I'm using the free Capture One 2.3 for Fuji RAW converter in conjunction with Affinity Photo. I've been told that Fuji assisted in the development of this converter, so it is suppose to be the best RAW converter for Fuji. I export the result as uncompressed 16 bit TIFF file, that way no information gets lost. It is automatically imported in Affinity Photo, where I can make more adjustments that are not enabled in the free Capture One. I then export the image from Affinity Photo, again as uncompressed 16 bit tiff file. One would assume that the export file of Capture One and the export file of Affinity Photo have about the same size, after all I did not change the size of the image, and both export files are uncompressed 16 bit tiff files. However, the export file from Capture One has a size of about 150 kB, and the export file from Affinity Photo has a size of less then 100 kB, so quite a difference. I did notice that all of the export files of Capture One have exactly the same size, whereas the output files from Affinity Photo differ in size. Could there be 'empty space' in the Capture One tiff files?

I've added all the metric sizes and more inch sizes as well, so now I have a complete list of paper sizes.

Ah, thanks. ISO 1008 defines photo paper sizes. You can buy the standard, it's a bargain. Something like € 45 for 3 (yes, 3 !!) pages.

So far I have not been able to find a formal standard for photo paper, not for U.S. sizes either. ISO 216 defines A, B, and C sizes, and there's also a U.S. standard that defines for instance Letter and Legal size paper. But no such thing for photo paper I'm afraid,

The A0 sheet of paper is the base, its size is 841 x 1189 mm. There are 16 sheets of A4 in one sheet of A0, so the short size of an A4 is in theory 841/4 = 210,25 mm, rounded down to 210 mm, and the long side is 1189/4 = 297,25 mm, rounded down to 297 mm. Really not that difficult.

Yes, but then the ratio differs. 210/300 = 0,7 and 150/210 = 0,714 The whole idea of the A, B, C, and even D series paper is that the ratio between the sides is always the same with every sheet size.

Every A size is rounded to the next millimeter, so 148,5 mm is wrong.

Sorry, but you're wrong. When you take a piece of A3 paper, and cut it in half, you will end up with two pieces of A4 paper. Cut the sheet of A4 paper in half, and you will get two sheets of A5 paper. That is only possible with the square root of 2 as ratio. This ratio was determined by a German scientist, Georg Christoph Lichtenberg, in 1786. The basis for the A series of paper is the A0 size, it is exactly 1 m² in size.

The wide range of ratios in photo paper is caused by different film formats, not the actual sizes. Photo paper can have a size of 4 x 6 inch, or 40 x 60 cm, both formats have the same ratio.

These are the sizes my print shop offers (with the price, always nice to know 😆) 10x15 €0,89 13x18 €1,99 15x20 €2,99 20x30 €5,99 30x45 €14,99 40x60 €24,99 50x75 €34,99 60x80 €39,99 60x100 €44,99 These are all very common metric sizes. Normally, no one uses A size photo prints for normal photos. I really don't see why it should be difficult to have two sets of photo paper sizes, photo - inch, and photo - metric.

I went to my camera shop, they also have a big professional printer for printing photos. I asked them if they use inch size photo paper, or metric. The reply was metric, exactly 10 x 15 cm for instance. That is what I had noticed my self as well. If you buy a photo frame for 10 x 15 cm, it will have that exact size. For a European it makes no sense that a print is 152.4 x 101.6 mm instead of 150 x 100 mm. Things would have been a lot easier these days if the U.S. would have gone metric 150 years ago, as was intended. A2, A1, and A0 are very big, and not normally used in photography. However, metric size photo paper is standard here, why should European users of Affinity not have those paper sizes in the table?

Exactly, that is the problem. The metric paper sizes are close to, but not the same as the inch paper sizes.