By

Simple Face Detection for Windows Phone (5/5)

To explain simple face detection, I wrote 5 posts with each another technique in the face detection process. When you combine all 5 steps, you will be able to detect faces in pictures or video streams.

The steps described in these posts are:

Read More

By

Simple Face Detection for Windows Phone (4/5)

To explain simple face detection, I wrote 5 posts with each another technique in the face detection process. When you combine all 5 steps, you will be able to detect faces in pictures or video streams.

The steps described in these posts are:

Read More

By

Simple Face Detection for Windows Phone (3/5)

To explain simple face detection, I wrote 5 posts with each another technique in the face detection process. When you combine all 5 steps, you will be able to detect faces in pictures or video streams.

The steps described in these posts are:

Read More

By

Simple Face Detection for Windows Phone (2/5)

To explain simple face detection, I wrote 5 posts with each another technique in the face detection process. When you combine all 5 steps, you will be able to detect faces in pictures or video streams.

The steps described in these posts are:

Read More

By

Simple Face Detection for Windows Phone (1/5)

To explain simple face detection, I wrote 5 posts with each another technique in the face detection process. When you combine all 5 steps, you will be able to detect faces in pictures or video streams.

The steps described in these posts are:

Read More

By

Live camera filters for HTML5 with JavaScript

This post demonstrates you how you can create a HTML5 page with JavaScript that will apply a basic image filter to a live webcam stream in the web browser. You can use the filter from this tutorial, or any other basic image filter. The filter that we use here is an invert filter, therefore all colors in the target picture will be inverted. Read More

By

Live camera filters for Windows Phone apps

This tutorial demonstrates you how you can create a Windows Phone app that will stream and apply a basic image filter on it.
You can use the filter from this tutorial, or any other basic image filter. The filter that we use here is an invert filter, therefore all colors in the target picture will be inverted.

While the technique to filter images remains unchanged, here for each frame, every pixel will be recalculated. Therefore it is a an intensive process that should be done as efficient as it can be. Especially when you use more than 1 filter, or filters where each pixel is affected by multiple other pixels.
Read More

By

Basic image filters for Windows Store apps

This tutorial demonstrates you how you can create a Windows Store app that will open a picture and apply a basic image filter to it.
You can use the filter from this tutorial, or any other basic image filter. The filter that we use here is an invert filter, therefore all colors in the target picture will be inverted.

Just like in the tutorial “Basic image filters for Windows Phone” we will add an Image, load a picture to a WriteableBitmap, apply the filter and display it in the Image. The idea is the same, unfortunately the code is not..

In Windows Store apps WriteableBitmap works differently. We can not access the pixel array directly.. Instead of the array with Int32 ARGB colors, we can obtain a byte array here. This byte array has a byte for each color, 4 colors per pixel in BGRA order. A little different approach. Easier to get the color, but a little harder to write back.

Read More

By

Basic image filters for HTML5 with JavaScript

This post demonstrates you how you can create a HTML5 page with JavaScript that will open a picture and apply a basic image filter to it.
You can use the filter from this tutorial, or any other basic image filter. The filter that we use here is an invert filter, therefore all colors in the target picture will be inverted.

Of course HTML5 is new and not yet fully supported by all browsers. I tested it on Windows Phone (7.8 and 8), Android (2.3) and iPhone (5) and it worked on all of them. Internet Explorer supports the canvas element since version 9. Read More

By

Basic image filters for Windows Phone

This tutorial demonstrates you how you can create a Windows Phone app that will open a picture and apply a basic image filter to it.
You can use the filter from this tutorial, or any other basic image filter. The filter that we use here is an invert filter, therefore all colors in the target picture will be inverted. Read More