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TOPIC: WebP format

WebP format 4 years 2 months ago #35921

  • 600WPMPO
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cYo wrote:
WebP gives you the same quality as jpg with 30% less image size. ComicRack supports WebP for reading and writing. Additionally if your device (Android, IPad) supports WebP, it is now the standard format used for device optimization.
Let's see if this WebP thing is any good.

First we'll export our books with the page format as WebP.



Next I export a book with the pages in the WebP format. Here it reduces the size from 86MB to 19MB. :cheer:



The individual page dimensions are the same, but the filesize of a page is reduced from 1.9 MB to 347 KB.



Now, let us see if the image quality suffers:



The quality is crystal clear, if not better than its source. ;)

So, I think the new WebP format is simply superb. If you have space constraints on your drive, or you use the cloud for uploading & then downloading your comics, this is the format to use.

So, what are you waiting for? Convert your entire library with the pages in the WebP format today! :-)
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Re: WebP format 4 years 2 months ago #35975

  • enigma75
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Ok, this got me excited...so I decided to try to convert some comics to WebP format. Once I set export option up, I get the following error:

https://www.dropbox.com/sc/xgjmxypxfsbxy5i/Z_Jwk2W2a9

Anyone have any clue why this happens?

*ugh* Technology is not my friend tonight...I can't figure out how to get the image to show up, so please check out the link.
Last Edit: 4 years 2 months ago by enigma75.
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Re: WebP format 4 years 2 months ago #35976

  • Karvajalka
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600WPMPO wrote:
cYo wrote:
So, what are you waiting for? Convert your entire library with the pages in the WebP format today! :-)

Nice to see test results. And I don't think you ment that literally. Anyway, before someone starts converting huge library, two reasons against it comes to my mind:
  1. If you want to read comics in tabled older than 4.0 android, you probably don't want to do that. Or is the synchronization smart enough to convert the webp-images to jpegs if tablet doesn't support it?
  2. You don't want to convert your old scans. Seems like those grainy old files actually get around 10%-20% larger when you convert them to WEBP

The second point I did couple of tests with old files:
JPEG 7,04 MB -> WEBP 7,79 MB (10,65% growth)
JPEG 11,5 MB -> WEBP 13,5 MB (16,38% growth)

Again, I can't see any meaningful loss of quality. WEBP just doesn't seem to like those noisy & grainy images too much. Works very nicely with new good quality scans though.
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Re: WebP format 4 years 2 months ago #35977

  • forkicks
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enigma75 wrote:
Ok, this got me excited...so I decided to try to convert some comics to WebP format. Once I set export option up, I get the following error:

https://www.dropbox.com/sc/xgjmxypxfsbxy5i/Z_Jwk2W2a9

Anyone have any clue why this happens?

*ugh* Technology is not my friend tonight...I can't figure out how to get the image to show up, so please check out the link.

Yes, i know why that happened. Starting with .171, comicrack now depends on Visual C++ 2010 redist.

Here is the link for the 32 bit ones and here for the 64 bit one. Select the proper one for your operating system (and installing both wont hurt you either). Most people will already have it installed on their systems, as many other programs depend on it too.

From the next version on, it will be included with the installer.

fK
Last Edit: 4 years 2 months ago by forkicks.
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Re: WebP format 4 years 2 months ago #36035

  • burnshroom
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I haven't even looked yet but does the device sync now provide an option to auto convert to WebP per device?

That would be ideal that way I can keep the originals stored on my PC as is and just have them convert during sync to whatever device to save space there.
Last Edit: 4 years 2 months ago by burnshroom.
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Re: WebP format 4 years 2 months ago #36036

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burnshroom wrote:
I haven't even looked yet but does the device sync now provide an option to auto convert to WebP per device?

That would be ideal that way I can keep the originals stored on my PC as is and just have them convert during sync to whatever device to save space there.
Using the latest versions of CRW & CRA/CRiOS, when you choose the 'optimized' option during the sync, the WebP format is used for the conversion by default. :-)
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Re: WebP format 4 years 2 months ago #36040

  • burnshroom
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Great to know...

Will definitely try... my collection on CRA was over 20 GBs so hopefully this will bring it down.

Thanks.
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Re: WebP format 4 years 2 months ago #36042

  • cYo
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600WPMPO wrote:
burnshroom wrote:
I haven't even looked yet but does the device sync now provide an option to auto convert to WebP per device?

That would be ideal that way I can keep the originals stored on my PC as is and just have them convert during sync to whatever device to save space there.
Using the latest versions of CRW & CRA/CRiOS, when you choose the 'optimized' option during the sync, the WebP format is used for the conversion by default. :-)

CRiOS support for WebP is still in beta and should be in the market next week.
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Re: WebP format 4 years 2 months ago #36063

Have smart list with comics not converted to webp?
How was I know if the file converted to webp?
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Re: WebP format 4 years 2 months ago #36064

  • 600WPMPO
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jcgpereira2001 wrote:
Have smart list with comics not converted to webp?
How was I know if the file converted to webp?
I was also thinking along these lines.

Feature request: Files exported to WebP should get a 'Yes' value in a 'WebP' metadata field (custom?)
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