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Nokia Original Imaging Effect Wiki Challenge 2014Q2

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Create and contribute a cool custom filter/effect or filter recipe to win DVLUP points and XP - or even a brand new Nokia Lumia 630. All qualifying contributions win!

Announcements.pngNokia Original Imaging Effect Wiki Challenge (02 Aug 2014): Congratulations to Lee McPherson,Yassine Serhane, Venu Kumar,Sebastiano Galazzo, Rodrigo Díaz Tajada, Oliver Ulm, Kenneth Kau, and Philip Taffet for writing winning articles in the Nokia Original Imaging Effect Wiki Challenge. There were so many good effects that it was difficult to choose. Thank you to all who participated.

This announcement may have expired, and needs to be checked.


The Nokia Imaging SDK allows developers to create new effects by combining the built-in effects and filters into filter recipes, or by writing completely new custom effects in C# or C++. The community have already contributed some useful and interesting filter recipes and custom effects.

In this challenge we're asking you to contribute your own new (or significantly improved) recipes and custom effects to the wiki. At the end of the challenge, all of the qualified contributed filters will be added to the Nokia Developer Community Project on Github so that the whole community can benefit.

All qualifying contributors will get 100 DVLUP Participation Points and XP (XP contributes to your DVLUP reputation, while points can be redeemed for exciting DVLUP prizes). There will be a a heap more points/XP for the three best effects of each of three categories (filter recipes, C# custom effects, C++ custom effects). The authors of the most popular filter of each type, as selected by Twitter, will be among the first people to receive a Nokia Lumia 630!

We can't wait to see what sort of funky and innovative filters you can come up with.


Getting Started

The Nokia Developer Wiki is already home to an unparalleled set of developer-created Custom Effects and Filter Recipes. Check out the existing articles and effects before you start.

In particular:

The Nokia Imaging SDK (download here) comes with great documentation and examples, which you can find in the Lumia Developer's Library. In particular, the following documents explain how to work with custom effects and filters:

If you are new to the wiki, you can read Help:Wiki Editing Quickstart for help getting started.

How to participate

Create an original Nokia Imaging SDK custom effect (in C# or C++) or filter recipe.

Your filter should contain original content that enhances the existing available Nokia Imaging SDK filters documented in the Wiki and documentation libraries. It may create a new visual effect, or it may provide a significantly more efficient implementation of an existing visual effect.

To make it interesting we will be breaking the competition into three segments and awarding the prizes as we go. Filters that don't win the first segment will still be eligible for subsequent sections - so there is a benefit to contributing early and improving your filter(s) as the competition progresses.

Challenge rules

Here are the Challenge rules:

  • To enter, add a link of your article in the comment section in this article.
  • The article and associated Code Example are submitted under the site Terms & Conditions.
  • Articles must be written in English. Translations may be provided in other languages, but only the English version will be judged.
  • The article should include the text: {{Note|This is an entry in the [[Nokia Original Imaging Effect Wiki Challenge 2014Q2]]}}.
  • The article should include the category Category:Nokia Imaging SDK Custom Effect.
  • Developers can create one or many articles, but there is only one potential prize, and a limit of 500 DVLUP Points and XP, per developer.
  • Teamwork is allowed and even endorsed, but only one prize and a maximum of 500 DVLUP Points and XP will be granted to a winning team. This will go to the person who creates the article initially.
  • The wiki competition will be broken into three segments. Articles must be submitted by 23:59 GMT on the days which mark the competition segments listed below. Please see for your local time.
    • 18th June (Wednesday). First segment ends (+3 weeks).
    • 30th June (Monday). Second segment ends (+1.5 weeks)
    • 14th July (Monday). Final segment ends (+2 weeks)
  • We will announce segment winners within the week following the end of each segment. There will be one winner per category per segment.
  • Full terms and conditions to the Wiki Challenge can be found here.
  • The Challenge will begin when this article is publicly published on the Wiki and closes at 23:59 GMT on 14 July 2014 (the “Challenge Period”). To be eligible for the 100 DVLUP Participation Points and XP, entries must be timestamped before that time.
  • The Twitter vote will commence at 16:00 GMT 21 July 2014 and will last for 48 hours. The top popular-vote article in each category will be announced on or around 28 July 2014.

Eligibility for prizes

To be eligible for the 100 DVLUP Participation Points and XP and consideration as a prize winner, the article must conform to the following rules and regulations:

  • The submitted article must contain steps for using the contributed filter.
  • The submitted article must not repeat any material already published on, although it’s okay to link to existing documentation as a prerequisite.
  • A link to the source code that shows the task described in the wiki must be included. This source code should be usable without modification, open-source licensed, logically commented, and preferably hosted on Github.
  • Entries must be submitted and timestamped before 23:59 GMT on 14 July 2014.

The prizes

We will be awarding 100 DVLUP Participation Points and XP to all qualifying contributors in this competition.

The following three prizes will be awarded at the end of each segment:

At the close of the contest, the top article in each category will be selected via popular vote over Twitter. See the full terms and conditions to the Wiki Challenge for details about how this will work. The author of the top-voted article in each category will receive a Nokia Lumia 630!

In addition, winning a Nokia Developer Challenge gives you instant fame and kudos in the community and promotion through Nokia Developer channels. It also looks really great on your CV!


  • Unless prohibited by local law in the jurisdiction where you live, the device prizes are supplied under a "Device Access Services" warranty. In essence devices are covered by a "manufacturer fault" replacement warranty for 6 months from delivery of the original device.

Evaluation of entries

Entries are judged first and foremost by the usefulness, quality and presentation of their technical information. Multiple entries are encouraged but will be assessed on their individual merits - so a single great entry will win over multiple articles that are not as good. Each contributor may win a maximum of one prize and/or 500 DVLUP Points and XP per Wiki Challenge.

The entries will be judged by the Wiki Moderation team and selected Nokia technical experts after the Challenge period. The results for the Challenge are expected to be announced three weeks after the end of the Challenge.

Challenge entries

All entries are listed below.

First Segment

Second Segment

Third Segment

The Winners

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