Re: tiff sizing problems in md to docx

Re: tiff sizing problems in md to docx

[jmuc...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org]

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Any help on this one?

Thanks.

On Saturday, 12 June 2021 at 15:34:25 UTC-4 jmuc...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org wrote:

> In working on a document with tiff images in it, I ran into some trouble. 
> Basically the proportions of the tiff get changed in the output docx file. 
> (Caveat: I don't have Word on my computer, but the macOS quicklook, Pages, 
> LibreOffice, Google doc conversation, and some random on-line file 
> converter all show the problem, so I take it that it's real.) I attach one 
> of the problematic docx files.
>
> It showed up for me like this:
>
> An included tiff image had the wrong proportions in the output docx. The 
> width was scaled down, so the image looked horizontally squished. I attach 
> a screen shot where the first image is a jpeg version and the second a 
> tiff. In that image, the jpeg has the dimensions of 1050x476, for a ratio 
> of 2.20, which matches the original. The tiff is 750x500 for a ratio of 
> 1.50 and the pixel height isn't the same as the jpeg either, so that's 
> getting changed, too.
>
> If I look at the document.xml in the unzipped version of the 
> pandoc-generated docx, I see this, which provides a 1.5 ratio of cx to cy:
>
> ```
> <a:xfrm>
>     <a:off x="0" y="0"/>
>     <a:ext cx="3810000" cy="2540000"/>
> </a:xfrm>
> ```
>
> If I use image magic's format command, the original tiff has the following 
> relevant (I think) properties:
>
> -  Geometry: 1758x798+0+0
> -  Resolution: 300x300
> -  Print size: 5.86x2.66
> -  Units: PixelsPerInch
>
> I don't see anything else that gets me to that 1.5 ratio. Note that both 
> image files in the unzipped docx seem identical to the originals, so 
> nothing is going on there.
>
> 2. In doing some testing, I came across a similar problem. I used 
> imagemagick to create two identical images, one jpeg and the other tiff. 
> Then I put them into a docx via pandoc:
>
> ```
> > magick rose: -format jpeg -resize 600% -colorspace gray -units 
> pixelsperinch -density 300 rose.jpeg
> > magick rose: -format tiff -resize 600% -colorspace gray -units 
> pixelsperinch -density 300 rose.tiff
> > pandoc -t docx -o rose.docx
> Hello.
>
> ![jpeg](./rose.jpeg)
>
> Goodbye
>
> ![tiff](rose.tiff)
>
> ```
> In this case the output images are very obviously differently sized, and 
> the second once again has an aspect ratio of 1.5 (the original is 1.52, so 
> the two images look identically proportioned to the eye). It also has the 
> identical pixel size as the tiff in the other example. I attach this file.
>
> If I output to odt, I get the following warning and the output file again 
> has a wrongly ratio'd tiff (not shown, but it's square):
>
> `[WARNING] Could not determine image size for rose.tiff: could not 
> determine image type`
>
> So something appears to be going on with reading tiffs.
>
> [image: Screen Shot 2021-06-12 at 14.33.55.png]
> [image: Screen Shot 2021-06-12 at 14.44.57.png]
>

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Re: tiff sizing problems in md to docx

[John MacFarlane]

Why don't you submit an issue to the tracker?
I note that Text.Pandoc.ImageSize doesn't contain a type for
Tiff, and also that the default for imagesize has a 1.5 aspect
ratio...so my guess is that we're just using defaults there.

I think it will be a trivial fix to support tiff properly!

"jmuc...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org" <jmuccigr-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:

> Any help on this one?
>
> Thanks.
>
> On Saturday, 12 June 2021 at 15:34:25 UTC-4 jmuc...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org wrote:
>
>> In working on a document with tiff images in it, I ran into some trouble. 
>> Basically the proportions of the tiff get changed in the output docx file. 
>> (Caveat: I don't have Word on my computer, but the macOS quicklook, Pages, 
>> LibreOffice, Google doc conversation, and some random on-line file 
>> converter all show the problem, so I take it that it's real.) I attach one 
>> of the problematic docx files.
>>
>> It showed up for me like this:
>>
>> An included tiff image had the wrong proportions in the output docx. The 
>> width was scaled down, so the image looked horizontally squished. I attach 
>> a screen shot where the first image is a jpeg version and the second a 
>> tiff. In that image, the jpeg has the dimensions of 1050x476, for a ratio 
>> of 2.20, which matches the original. The tiff is 750x500 for a ratio of 
>> 1.50 and the pixel height isn't the same as the jpeg either, so that's 
>> getting changed, too.
>>
>> If I look at the document.xml in the unzipped version of the 
>> pandoc-generated docx, I see this, which provides a 1.5 ratio of cx to cy:
>>
>> ```
>> <a:xfrm>
>>     <a:off x="0" y="0"/>
>>     <a:ext cx="3810000" cy="2540000"/>
>> </a:xfrm>
>> ```
>>
>> If I use image magic's format command, the original tiff has the following 
>> relevant (I think) properties:
>>
>> -  Geometry: 1758x798+0+0
>> -  Resolution: 300x300
>> -  Print size: 5.86x2.66
>> -  Units: PixelsPerInch
>>
>> I don't see anything else that gets me to that 1.5 ratio. Note that both 
>> image files in the unzipped docx seem identical to the originals, so 
>> nothing is going on there.
>>
>> 2. In doing some testing, I came across a similar problem. I used 
>> imagemagick to create two identical images, one jpeg and the other tiff. 
>> Then I put them into a docx via pandoc:
>>
>> ```
>> > magick rose: -format jpeg -resize 600% -colorspace gray -units 
>> pixelsperinch -density 300 rose.jpeg
>> > magick rose: -format tiff -resize 600% -colorspace gray -units 
>> pixelsperinch -density 300 rose.tiff
>> > pandoc -t docx -o rose.docx
>> Hello.
>>
>> ![jpeg](./rose.jpeg)
>>
>> Goodbye
>>
>> ![tiff](rose.tiff)
>>
>> ```
>> In this case the output images are very obviously differently sized, and 
>> the second once again has an aspect ratio of 1.5 (the original is 1.52, so 
>> the two images look identically proportioned to the eye). It also has the 
>> identical pixel size as the tiff in the other example. I attach this file.
>>
>> If I output to odt, I get the following warning and the output file again 
>> has a wrongly ratio'd tiff (not shown, but it's square):
>>
>> `[WARNING] Could not determine image size for rose.tiff: could not 
>> determine image type`
>>
>> So something appears to be going on with reading tiffs.
>>
>> [image: Screen Shot 2021-06-12 at 14.33.55.png]
>> [image: Screen Shot 2021-06-12 at 14.44.57.png]
>>
>
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> To unsubscribe from this group and stop receiving emails from it, send an email to pandoc-discuss+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
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Re: tiff sizing problems in md to docx

[jmuc...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org]

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Submitted. #7405 <https://github.com/jgm/pandoc/issues/7405>

On Wednesday, 23 June 2021 at 13:27:23 UTC-4 John MacFarlane wrote:

>
> Why don't you submit an issue to the tracker?
> I note that Text.Pandoc.ImageSize doesn't contain a type for
> Tiff, and also that the default for imagesize has a 1.5 aspect
> ratio...so my guess is that we're just using defaults there.
>
> I think it will be a trivial fix to support tiff properly!
>
> "jmuc...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org" <jmuc...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:
>
> > Any help on this one?
> >
> > Thanks.
> >
> > On Saturday, 12 June 2021 at 15:34:25 UTC-4 jmuc...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org wrote:
> >
> >> In working on a document with tiff images in it, I ran into some 
> trouble. 
> >> Basically the proportions of the tiff get changed in the output docx 
> file. 
> >> (Caveat: I don't have Word on my computer, but the macOS quicklook, 
> Pages, 
> >> LibreOffice, Google doc conversation, and some random on-line file 
> >> converter all show the problem, so I take it that it's real.) I attach 
> one 
> >> of the problematic docx files.
> >>
> >> It showed up for me like this:
> >>
> >> An included tiff image had the wrong proportions in the output docx. 
> The 
> >> width was scaled down, so the image looked horizontally squished. I 
> attach 
> >> a screen shot where the first image is a jpeg version and the second a 
> >> tiff. In that image, the jpeg has the dimensions of 1050x476, for a 
> ratio 
> >> of 2.20, which matches the original. The tiff is 750x500 for a ratio of 
> >> 1.50 and the pixel height isn't the same as the jpeg either, so that's 
> >> getting changed, too.
> >>
> >> If I look at the document.xml in the unzipped version of the 
> >> pandoc-generated docx, I see this, which provides a 1.5 ratio of cx to 
> cy:
> >>
> >> ```
> >> <a:xfrm>
> >> <a:off x="0" y="0"/>
> >> <a:ext cx="3810000" cy="2540000"/>
> >> </a:xfrm>
> >> ```
> >>
> >> If I use image magic's format command, the original tiff has the 
> following 
> >> relevant (I think) properties:
> >>
> >> - Geometry: 1758x798+0+0
> >> - Resolution: 300x300
> >> - Print size: 5.86x2.66
> >> - Units: PixelsPerInch
> >>
> >> I don't see anything else that gets me to that 1.5 ratio. Note that 
> both 
> >> image files in the unzipped docx seem identical to the originals, so 
> >> nothing is going on there.
> >>
> >> 2. In doing some testing, I came across a similar problem. I used 
> >> imagemagick to create two identical images, one jpeg and the other 
> tiff. 
> >> Then I put them into a docx via pandoc:
> >>
> >> ```
> >> > magick rose: -format jpeg -resize 600% -colorspace gray -units 
> >> pixelsperinch -density 300 rose.jpeg
> >> > magick rose: -format tiff -resize 600% -colorspace gray -units 
> >> pixelsperinch -density 300 rose.tiff
> >> > pandoc -t docx -o rose.docx
> >> Hello.
> >>
> >> ![jpeg](./rose.jpeg)
> >>
> >> Goodbye
> >>
> >> ![tiff](rose.tiff)
> >>
> >> ```
> >> In this case the output images are very obviously differently sized, 
> and 
> >> the second once again has an aspect ratio of 1.5 (the original is 1.52, 
> so 
> >> the two images look identically proportioned to the eye). It also has 
> the 
> >> identical pixel size as the tiff in the other example. I attach this 
> file.
> >>
> >> If I output to odt, I get the following warning and the output file 
> again 
> >> has a wrongly ratio'd tiff (not shown, but it's square):
> >>
> >> `[WARNING] Could not determine image size for rose.tiff: could not 
> >> determine image type`
> >>
> >> So something appears to be going on with reading tiffs.
> >>
> >> [image: Screen Shot 2021-06-12 at 14.33.55.png]
> >> [image: Screen Shot 2021-06-12 at 14.44.57.png]
> >>
> >
> > -- 
> > You received this message because you are subscribed to the Google 
> Groups "pandoc-discuss" group.
> > To unsubscribe from this group and stop receiving emails from it, send 
> an email to pandoc-discus...-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
> > To view this discussion on the web visit 
> https://groups.google.com/d/msgid/pandoc-discuss/ad6c9227-764d-4a81-9242-efdbbef46916n%40googlegroups.com
> .
>

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Re: tiff sizing problems in md to docx

[jmuc...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org]

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For posterity, this is fixed in 2.14.1.

On Saturday, 12 June 2021 at 21:34:25 UTC+2 jmuc...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org wrote:

> In working on a document with tiff images in it, I ran into some trouble. 
> Basically the proportions of the tiff get changed in the output docx file. 
> (Caveat: I don't have Word on my computer, but the macOS quicklook, Pages, 
> LibreOffice, Google doc conversation, and some random on-line file 
> converter all show the problem, so I take it that it's real.) I attach one 
> of the problematic docx files.
>
> It showed up for me like this:
>
> An included tiff image had the wrong proportions in the output docx. The 
> width was scaled down, so the image looked horizontally squished. I attach 
> a screen shot where the first image is a jpeg version and the second a 
> tiff. In that image, the jpeg has the dimensions of 1050x476, for a ratio 
> of 2.20, which matches the original. The tiff is 750x500 for a ratio of 
> 1.50 and the pixel height isn't the same as the jpeg either, so that's 
> getting changed, too.
>
> If I look at the document.xml in the unzipped version of the 
> pandoc-generated docx, I see this, which provides a 1.5 ratio of cx to cy:
>
> ```
> <a:xfrm>
>     <a:off x="0" y="0"/>
>     <a:ext cx="3810000" cy="2540000"/>
> </a:xfrm>
> ```
>
> If I use image magic's format command, the original tiff has the following 
> relevant (I think) properties:
>
> -  Geometry: 1758x798+0+0
> -  Resolution: 300x300
> -  Print size: 5.86x2.66
> -  Units: PixelsPerInch
>
> I don't see anything else that gets me to that 1.5 ratio. Note that both 
> image files in the unzipped docx seem identical to the originals, so 
> nothing is going on there.
>
> 2. In doing some testing, I came across a similar problem. I used 
> imagemagick to create two identical images, one jpeg and the other tiff. 
> Then I put them into a docx via pandoc:
>
> ```
> > magick rose: -format jpeg -resize 600% -colorspace gray -units 
> pixelsperinch -density 300 rose.jpeg
> > magick rose: -format tiff -resize 600% -colorspace gray -units 
> pixelsperinch -density 300 rose.tiff
> > pandoc -t docx -o rose.docx
> Hello.
>
> ![jpeg](./rose.jpeg)
>
> Goodbye
>
> ![tiff](rose.tiff)
>
> ```
> In this case the output images are very obviously differently sized, and 
> the second once again has an aspect ratio of 1.5 (the original is 1.52, so 
> the two images look identically proportioned to the eye). It also has the 
> identical pixel size as the tiff in the other example. I attach this file.
>
> If I output to odt, I get the following warning and the output file again 
> has a wrongly ratio'd tiff (not shown, but it's square):
>
> `[WARNING] Could not determine image size for rose.tiff: could not 
> determine image type`
>
> So something appears to be going on with reading tiffs.
>
> [image: Screen Shot 2021-06-12 at 14.33.55.png]
> [image: Screen Shot 2021-06-12 at 14.44.57.png]
>

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