seam_carver

Side tangent: I’m the developer of Kindle Comic Converter. Kindle updates 5.19.2+ have completely broken the sideloaded manga reader with bugs like huge margins, pages being on the wrong side in 2 page landscape mode, no panel view, no % read tracker, and laggy page turns. I’ve documented the problems here and the first report was 50 days ago. https://youtu.be/Eo6K7omlE7g

And I haven’t even touched all the problems with normal sideloaded books like broken embedded/publisher fonts.

Kindle settings > help > contact us > email if you want to voice complaints.

An interesting application of the 2D DFT to manga on color eink Kaleido 3 with math theory explained! Kobo Colour images.

Most of the slides are based on the DFT chapter in Digital Image Processing: A Practical Approach by Nick Efford. I learned DFT to understand this algorithm.

I think I saw a YouTube video where some developer said that Apple requires you to use latest version of Xcode, that version has a minimum SDK (I think iOS 15) and he was complaining he couldn't update his iOS 12 targetting app anymore.

Available for:

iPhone 6s (all models), iPhone 7 (all models), iPhone SE (1st generation), iPad Air 2, iPad mini (4th generation), and iPod touch (7th generation)

iOS 16.7.15 and iPadOS 16.7.15: iPhone 8, iPhone 8 Plus, iPhone X, iPad 5th generation, iPad Pro 9.7-inch, and iPad Pro 12.9-inch 1st generation

r/Kindle is exploding with reports

An interesting application of the 2D DFT to manga on color eink Kaleido 3 with math theory explained! Kobo Colour images.

Most of the slides are based on the DFT chapter in Digital Image Processing: A Practical Approach by Nick Efford. I learned DFT to understand this algorithm.

On Slickdeals, the 60 day unlock after paying for one month of service was often used for locked phones like the $49 iPhone SE. This prevents that.

So Windows 12 is

Just remove anything under the mask basically, similar to a low pass filter.

If anyone wants to learn about the 2D DFT, the best explanation I've ever read was the relevant chapter in Digital Image Processing by Nick Efford.

If anyone wants to see my favorite application of the 2D DFT, I made a video of how the DFT is used to remove rainbows in manga on Kaleido 3 color eink on Kobo Colour:

https://youtu.be/Dw2HTJCGMhw?si=J6dUYOj2IRX1nPRF

The last update for iPhone 8 was iOS 16.7.12 on 15 Sep 2025

Have you looked at the Mac Pro Rack version?

Yea, Safari 26.1 is really buggy for me on macOS 15. Google searching the issue, lots of my issues are fixed int he 26.2 beta, I had to download beta from apple developer website.

I once had to deal with an old website that ignored the orientation flag in jpg, so my iPhone portrait photos showed up landscape when I uploaded them.

Thankfully Finder in macOS has a way to remove the flag:

How to remove orientation from portrait photo from iPhone on macOS https://youtu.be/lWOlfjVyes4

I couldn’t find a way to do it in Preview, but Finder could do it.

I made a video about a cool application of the Discrete Fourier Transform regarding color eink Kaleido 3 and manga:

https://youtu.be/Dw2HTJCGMhw?si=Qhgtz5i75v8LwTyi

Learning about Fourier is really interesting in image processing, I'm glad I found a good textbook explaining it.

No, you can't. You need a special app to browse a recent android phone or kindle on a mac

What really grinds my gears is that I have devices that only work with AFT and not OpenMTP. Like my Hisense A9. Because AFT will crash if you try to transfer hundreds of files. I wish I could get rid of AFT but I can't

I also have a usb-c flash drive for copying as well.

Amazon has a great MTP app but it only works with Kindles.

Oooo, might try this with my 2011 PC.

Here's a video I recorded of me reading Hacker News on my Hisense A9 eink smartphone (it came out before the Palma, and hardware has been rock solid.)

https://www.youtube.com/watch?v=onvSjhubvQ8

Macs typically have a minimum of the latest macos on release. So no, it's likely macos 26 minimum

I recently added Windows 7 support to an open source app I run, Kindle Comic Converter.

It was as easy as downgrading a bunch of dependencies (PySide6, numpy) and created a legacy build, and the Windows 7 version got like 2% of downloads (~200). I assume it works since I've gotten no complaints and I don't have a Windows 7 machine to test haha, Windows 7 in UTM crashes a lot for me on macOS ARM.

Man people are still using this. I really only did this since I added macOS 10.14 support (prior minimum was macOS 12) and most of the work needed was already mostly done by that. In theory I could even get macOS 10.10 support, but that would require downgrading Qt6 to Qt5

Louis Rossman would love to hear from you. Here's a recent video where he covers the exact same situation as you with another company where the purchasing company disables functionality behind a subscription.

And is actively trying to prevent hackers from running stuff locally.

https://www.youtube.com/watch?v=66j9dsPhAjE

Fourier transforms are useful in applications like avoiding moire when downscaling manga and reducing rainbow artifacts in color eink manga. All in kindle comic converter.

Kindle Comic Converter recently added fullscreen manga support for all ReMarkable models using a new PDF output option, the previous EPUB output option added large margins.

This feature is only available in the beta version built from current master, not in the current 9.0.0 release.

Works excellent, better than Adguard for me.

I didn't change any default settings in either.

One of the story arcs in “The Phoenix” by Osama Tezuka is on a similar topic.

That sounds like a separate issue than what's he's describing.

I believe this is a more detailed explanation:

There are two main tag values for Kindle books: EBOK and PDOC.

EBOK is intended for store content. (ebooks) PDOC is intended for user content. (personal documents)

In the past, only EBOK got cover thumbnails. So Calibre tagged books as ebok to get cover thumbnails.

This changed in a relatively recent firmware update for 7th gen and later Kindles, so now PDOC tagged books get cover thumbnails too. (Sept 2022)

I assume that Amazon just looks at the EBOK tag, assumes its an expired loan or something, and deletes it. Since that thread says only EBOKs get deleted. Calibre still tags as EBOK by default. A possible solution is to tag as PDOC instead. That thread mentions the problem started in 7/2021

AdGuard doens't work for me so I'm excited on macOS

Removing in macOS 28