Where communities thrive

Join over 1.5M+ people
Join over 100K+ communities
Free without limits
Create your own community

Explore more communities

FLIF-hub/FLIF

Free Lossless Image Format

People

Repo info

Activity

Jun 05 15:28

ziemek99 labeled #468
Jun 05 15:22

ziemek99 labeled #481
Jun 04 14:41

ziemek99 closed #145
Jun 04 14:41

ziemek99 closed #150
Jun 04 14:41

ziemek99 closed #278
Jun 04 14:40

ziemek99 closed #420
Jun 04 14:40

ziemek99 closed #209
Jun 04 14:40

ziemek99 closed #350
Jun 04 14:40

ziemek99 closed #425
Jun 04 14:39

ziemek99 closed #475
Mar 09 09:59

Maniues opened #14
Jan 20 18:37

ziemek99 commented #425
Jan 20 18:29

saschanaz commented #425
Jan 20 18:21

ziemek99 closed #425
Jan 20 18:21

ziemek99 commented #425
Jan 20 18:21

ziemek99 labeled #425
Jan 20 18:16

ziemek99 reopened #504
Jan 20 18:16

ziemek99 reopened #505
Jan 20 18:16

ziemek99 reopened #501
Jan 20 18:15

ziemek99 reopened #503

Christian Schneider

@schnaader

https://stackoverflow.com/questions/891643/twitter-image-encoding-challenge might be worth a look, too

Michael Lyle

@mlyle

Hmm.. the extreme compression "makes up" too much of the image to be useful IMO, on further reading/evaluating

thanks for the links, though, it's good food for thought. I've got a long time fortunately to figure this out-- will be sailing a prototype at a lake this weekend

matrixbot

@matrixbot

TheGreatNi Is XMP support bugged? I tried converting to and then from flif and the metadata disappeared

matrixbot

@matrixbot

hrjet I had added XMP support to FLIF last year: FLIF-hub/FLIF#375
But the changelog for the release after that doesn't mention it: https://github.com/FLIF-hub/FLIF/releases

hrjet TheGreatNi: Which version are you using?

hrjet Also, check the version of libpng being used. IIRC, versions below 1.6 don't have the requisite support.

matrixbot

@matrixbot

TheGreatNi 0.3

TheGreatNi I'm testing it out by adding xmp data via xnview, then converting to and from flif

matrixbot

@matrixbot

hrjet make test in src/ folder has a test to verify metadata is being properly emitted. Does it pass for you?

matrixbot

@matrixbot

TheGreatNi hrjet: I'll test it out in a bit, thanks for your patience

matrixbot

@matrixbot

TheGreatNi Looks like it's the libpng version I compiled with that's the culprit, curse the repo manager

TheGreatNi Repo manager of my distro that is

Zoey Riordan

@ZoeyR

Is there a reasonable limit to put on the size of a maniac tree? Certain malicious inputs could cause endless memory growth so I want a way to stop decoding if that happens.

Zoey Riordan

@ZoeyR

Also, do maniac trees tend towards being balanced? I'm using a vector to store the nodes and that will waste a lot of space if it isn't.

Zoey Riordan

@ZoeyR

nevermind on the last question. I started storing child indicies so that the tree can be compressed to the minimum possible size.

Simanto Rahman

@Simanto_Rahman_twitter

Are there packages for linux-x64/win-x64?

Simanto Rahman

@Simanto_Rahman_twitter

Is the source code available? I needed to use FLIF with C#. Might be able to convert it into a pure C# library with managed classes if I could see the source code

The Jared Wilcurt

@TheJaredWilcurt

All of FLIF source code is available in the main repo: https://github.com/FLIF-hub/FLIF

There is a built Windows 32-bit version stored in the node-flif repo. https://github.com/FLIF-hub/node-flif

The Jared Wilcurt

@TheJaredWilcurt

@Simanto_Rahman_twitter

The Jared Wilcurt

@TheJaredWilcurt

you can see the related projects list at the bottom of the README

There are also spec documents, https://github.com/FLIF-hub/FLIF-doc and http://flif.info/papers/FLIF_ICIP16.pdf

Leo Izen

@thebombzen

has any progress been made on the whole "appending to the decoder buffer" thing?

currently if you're reading FLIF from a slow device or network stream, we can't actually reach the end of the stream, decode the truncated FLIF, then keep going once more data is available

meenu30yadav

@meenu30yadav

I want to show a demo of converting any image to flif format

Can anyone please guide me here?

The Jared Wilcurt

@TheJaredWilcurt

@meenu30yadav The official flif.exe converter only handles encoding .png, .pnm, .ppm, .pgm, .pbm, and .pamto .flif. Or decoding from .flif to one of those formats, or transcoding from .flif to .flif

you would need to use something like ImageMagick's convert.exe to handle converting any other image format over to .png, then flif.exe to convert from .png to .flif

I do not believe there are any tools currently that handle the in-between steps yet. Though it is something I would like to do for the next GUI desktop app I make for FLIF. but that is low priority for me currently

So for now you would need to handle converting the image to PNG first prior to converting to FLIF

Simanto Rahman

@Simanto_Rahman_twitter

I'm really looking forward to having FLIF supported in my web-service. I would love to have a C# wrapper for the binaries. The current link for the C# port is broken.

meenu30yadav

@meenu30yadav

I used cloudera to get jpeg image and later copied the address in a browser, modified its extension with flif. Was able to get flif extensiin image but since browser is not available for flif image, couldn't open it

Simanto Rahman

@Simanto_Rahman_twitter

I'm mostly looking to store images in flif for my personal server. I'll be using a decoder to convert the image to pixel format when needed. I'm currently working on an ImageSharp extension for FLIF but ImageSharp will not adapt it until the licensing has been updated to something similar to Apache 2.0. I will keep the pull request and keep updating. FLIF is an amazing format and I do believe when its finished (and license accepted) browsers will consider FLIF as a viable addition.

The Jared Wilcurt

@TheJaredWilcurt

That would be cool. @Simanto_Rahman_twitter If you use Node.js there is a full written and tested Node wrapper for FLIF.exe

The Jared Wilcurt

@TheJaredWilcurt

https://github.com/FLIF-hub/node-flif

Leo Izen

@thebombzen

why do you keep calling it flif.exe

Simanto Rahman

@Simanto_Rahman_twitter

Does flif have any base API documentation that I can use to Marshall into C#?

And also, what happened to the original implementation?

C# i mean

The Jared Wilcurt

@TheJaredWilcurt

@thebombzen Differentiate between the file format/encoding, the project, the source code, and the built binary.

Node-FLIF uses a pre-built win32 .exe file for windows and flif-wasm for OSX/Linux. It use's node commands to run the executable and it converts the JavaScript Object of options that are passed in into command line arguments

Simanto Rahman

@Simanto_Rahman_twitter

Now as you're the maintainer of FLIF, I wanted to make a managed encoder decoder based on the original ones. Managed would mean its usable across the mobile, web and standalone platforms via C#

Or do you think using native binaries might be better?