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PUBLIC MARKS with tag pixel

This year

Paper.js — Using Pixel Colors

by sbrothier & 1 other
Using Paper.js you can easily work with the colors of individual pixels of Raster items.

LockBits vs Get Pixel Set Pixel - Performance | Pragmatic Developer

by sbrothier
When using GDI+ method you can optimize the process of bitmap manipulation  seven  times.I am implementing an image scaling algorithm at my University Seam Carving . While working on this project I realized that simply accessing pixels by the GetPixel and SetPixel methods is too slow.

Fast Pixel Operations in .NET (With and Without unsafe) - CodeProject

by sbrothier
The Bitmap class has GetPixel and SetPixel methods that let you acquire and change color of chosen pixels. Those methods are very easy to use but are also extremely slow. My previous post gives detailed explanation on the topic, click here if you are interested. Fortunately, you don’t have to use external libraries (or resign from .NET altogether) to do fast image manipulation. The Framework contains a class called ColorMatrix that lets you apply many changes to images in an efficient manner. Properties such as contrast or saturation can be modified this way. But what about manipulation of individual pixels? It can be done too, with the help from the Bitmap.LockBits method and the BitmapData class… A good way to test individual pixel manipulation speed is color difference detection. The task is to find portions of an image that have color similar to some chosen color. How to check if colors are similar? Think about color as a point in three dimensional space, where axis are: red, green and blue. Two colors are two points. The difference between colors is described by the distance between two points in RGB space.


Designing a Super Mario map with Mapbox Studio | Mapbox

by sbrothier
Due to the amount of features and level of abstraction, I knew that creating this map would be a great test of my proficiency with Mapbox Studio, as well as Studio's own limits. By diving into the deep end, I learned some useful strategies.


by sbrothier & 1 other
Nicolas Sassoon Born 1981 in Marseille, France - Lives & works sometimes

8-Bit Cities

by sbrothier & 1 other
City maps in the style of 1980s video games

Pixel perfect: the story of eBoy | The Verge

by sbrothier
Wedding, despite what its name may suggest, is not a very pretty part of Berlin. It’s drab, seedy, and has long been among the city’s poorest areas. Today, it’s home to a large immigrant population, mostly Turks, as evidenced by the kebab houses and hookah bars that line its gray streets.

Density Converter

by emmanuelc & 1 other
Density Converter by Jeff Broderick PX to EM conversion made simple.

by dzc & 9 others
à partir de la taille de font du body donne une conversion pour les différentes tailles en pixel

Pixem — A PX to EM converter for CSS

by dzc & 1 other
remplace dans une CSS, les valeurs en Pixels par des valeurs équivalentes en EM

Paper.js - Paper.js

by srcmax & 1 other
Using Paper.js you can easily work with the colors of individual pixels of Raster items.


Retina.js | Retina graphics for your website

by dzc & 4 others
When your users load a page, retina.js checks each image on the page to see if there is a high-resolution version of that image on your server. If a high-resolution variant exists, the script will swap in that image in-place. The script assumes you use Apple's prescribed high-resolution modifier (@2x) to denote high-resolution image variants on your server.

Gorgeous Retina : le dilemme de l’intégrateur

by dzc & 1 other
celui-là peut vous sauver la vie en aller chercher tout seul sur votre serveur les images suffixées « @2x » : « monimage@2x.jpg ». Autrement dit, préparez à l’avance 2 tailles : une normale, appelée par défaut, et l’autre 2 fois plus grande pour du retina.

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