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boostorg/gil

Discuss Boost.GIL (Generic Image Library) | New channel #boost-gil at https://cpplang.slack.com | Go to https://cppalliance.org/slack/

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May 20 09:31

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ashishvishal78

@ashishvishal78

hi everyone
I am Ashish Vishal, a student of IIT(BHU).
I am interested in image processing so I want to contribute to BOOST.GIL
project in GSoC 20. I am having a decent knowledge of C++ and image processing.
Below is the link of my codeforces, CodeChef and hackerrank handle on which I have submitted some solutions in c++.
codeforces: https://codeforces.com/profile/ashishvishal78
CodeChef: https://www.codechef.com/users/ashishvishal78
hackerrank: https://www.hackerrank.com/ashishvishal7810

I have recently done a project on image processing in the technical fest (Technex) of IIT(BHU) and was the first runnerup of the event. The project code is uploaded on my Github profile.
Below is the link of my GitHub repo
Github: https://github.com/ashishvishal78/pixelete-2020

Pranam Lashkari

@lpranam

Hello, @ashishvishal78 we have got new GIL channel on slack which would be a more appropriate place for any discussion now onwards as we are slowly shifting there from gitter for GIL channel

ashishvishal78

@ashishvishal78

thanks for inviting me

Mateusz Łoskot

@mloskot

FYI, on cpplang.slack.com, apart from #boost and #boost-gil channels, there is also Boost-wide Google Summer of Code channel. Feel free to join #boost-gsos
You can join cpplang.slack.com via https://cppalliance.org/slack/

Manav-Kumar

@Manav-Kumar

Hello Everyone, i have recently joined this channel, I wanted to participate in GSOC by contributing in this project. I had a descent ides on Image Processing, C++ and wanted to actively contribute in this open source community.

Manav-Kumar

@Manav-Kumar

Can somebody guide me on it.

Mateusz Łoskot

@mloskot

@Chinmay-Manas First things first https://lists.boost.org/Archives/boost/2020/02/248236.php then Boost wiki on GSoC, then GIL README and links there

If you have specific questions, post to Boost (or boost-gil) mailing list

See the README or topic of this room for link to slack channels

Manav-Kumar

@Manav-Kumar

@mloskot, Can you please send me invite link for slack group.

Mateusz Łoskot

@mloskot

@Manav-Kumar https://cppalliance.org/slack/

Bhavuk kalra

@bhavukkalra

Hello everyone,

can i get an invite to boost.GIL channel.

Mateusz Łoskot

@mloskot

https://cppalliance.org/slack/

Shubham

@shubham9008

@mloskot can you please send me an invite link for slack group ..

Pranam Lashkari

@lpranam

The link is literally just above your message

Shubham

@shubham9008

O..sorry

Nikita Kniazev

@Kojoley

@mloskot Seen your message on mail list. I assume you have run the test under ASan and UBSan with the latest Clang. I had observed a codgen regression in VS2017 that took me a while to investigate https://developercommunity.visualstudio.com/content/problem/342397/x64-optimization-codgen-bug-in-latest-compiler-ver.html and while it is seems to be fixed in VS2019 it is still not in VS2017. I may suggest to find an older build of VS2017 (<=15.7.5) and see if the bug reproduces there.

Pranam Lashkari

@lpranam

I would suggest you to join the slack channel @Kojoley

And continue conversation there...

Nikita Kniazev

@Kojoley

@lpranam I do not have slack and do not want to use it

Mateusz Łoskot

@mloskot

I do not have slack and do not want to use it

@Kojoley I understand not everyone is keen in using Slack. I moved there as all other Boost'ers hang out there, it is properly archived, convenient. I don't force anyone to move along, I just may not hang out on Gitter as often myself.

@Kojoley I dUBSan builds (undefined, integer, nullability) on Linux, they pass, but I admit I did not checked their detailed output yet. Thaks for the pointers, I will follow those leads

Mahmoud Ahmed

@mahmoudahmedd

Hello everybody

Mateusz Łoskot

@mloskot

Mahmoud Ahmed

@mahmoudahmedd

I am Mahmoud, studying Computer Science at the Cairo University with a graduation date of 06/2021.

I have been trying for a week to link boost library (boost_1_69_0/boost_1_72_0) with visual studio 2010 or 2013 to solve Programming competency test

Mateusz Łoskot

@mloskot

sorry, this is not a general Boost support channel

15 replies

Mahmoud Ahmed

@mahmoudahmedd

But I do not know what is the problem
I watched many videos...
I followed the necessary steps...
But I don’t know what is the problem

Mateusz Łoskot

@mloskot

to link boost library

FYI, there is no such thing as a Boost library.
Boost is a collection of C++ libraries!

Mateusz Łoskot

@mloskot

@mahmoudahmedd As you've said the word GIL, yes, this is the right channel, although we are moving to #boost-gil on Slack

Back to your question

to link boost library

GIL is header-only, there is no linking against any GIL binaries

Mahmoud Ahmed

@mahmoudahmedd

Well, I'm going to ask another question.
Can i slove "Programming competency test --- Generic Image Library"

Using another library?

It is a simple library that helps me read bitmap images...

Mateusz Łoskot

@mloskot

@mahmoudahmedd second issue

with visual studio 2010 or 2013

If you read the https://github.com/boostorg/gil/#requirements you will learn GIL requires C++11 since Boost 1.68 release

You should know your compiler/toolset of your choice to be able to tell if it does support C++11 or not
There will be no time for teaching you how to use compilers during GSoC

Using another library?

Well, the competency test is clear, it says "Using latest Boost.GIL..." and it says "...using latest Boost.GIL." again

There is alternative competency test suggested, which does not have to use GIL but metaprogramming techniques

Now, given that it is late into GSoC program and some students have been working on their proposals and competency tests since January, changing or relaxing competency test now is not the right thing to do.

I believe that answers your question

Mahmoud Ahmed

@mahmoudahmedd

There is alternative competency test suggested, which does not have to use GIL but metaprogramming techniques

Yes, I have read it, but to be honest with you
I did not understand the required
But the first (simple convolution filter) test was considered rather simple

Well I will try again
Thank you Mr Mateusz :)

Mateusz Łoskot

@mloskot

Well, I have to say basics of metaprogramming like using typelists, finding element in a typelist using a library like Boost.MP11 mentioned there, is quite a requirement for contributing to GIL.

GIL is a non-trivial highly templated code

usamah375

@usamah375

Hello. I just submitted a draft proposal for GSoC to work on a K-means clustering algorithm for GIL. I have prior experience in C++, but for image processing projects I have mostly worked in Python - where I've previously implemented a Hierarchical Agglomerative Clustering for images. I was hoping to receive some guidance on my shared proposal.

I am also attempting the edge detection task to familiarize myself with GIL, or would you prefer I submit something else?

Mateusz Łoskot

@mloskot

If you submitted it to GSoC site I'm sure it will be received and reviewed.

It's only two days to the deadline and I cannot offer you any discussion or feedback about your draft.

Samuel Debionne

@sdebionne

Hi everyone, has anyone already implemented an ImageView that keeps a ref counter to the underlying data (e.g. Image)? I was thinking of using a Shared Container Iterator. Just wondering if anyone has already tested this or any other approaches...

Mateusz Łoskot

@mloskot

Nope, not me

Mateusz Łoskot

@mloskot

@sdebionne in case you missed the news :point_right: https://cppalliance.org/slack/ :)

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