Understanding Cardinality Estimation Algorithms
For example, consider an array a[10] = {1, 2, 3, 4, 1, 2, 3, 4, 5, 6, 7}. The task is to count the number of distinct elements, which in this case would be {1, 2, 3, 4, 5, 6, 7}, totaling seven unique values. Similarly, in web analytics, you may want to track individual users like "Xiaoming" with out repeatedly counting their visits, ...
Posted on Mon, 06 Jul 2026 16:59:54 +0000 by AchillesForce
Android Drawable Resources: Types and Implementation
Drawable resources represent graphical elements that can be rendered on screen and retrieved via APIs like getDrawable(int). They can be applied to XML attributes such as android:drawable and android:icon. Various drawable types include:
Bitmap Files: Image files (.png, .jpg, .gif) that create BitmapDrawable objects
Nine-Patch Files: Scalable ...
Posted on Mon, 01 Jun 2026 16:45:40 +0000 by maliary
Converting HImage to Bitmap in C# for RGB Channel Images
When working with Halcon's HImage objects in C#, converting them into standard .NET Bitmaps can present performance challenges, especial when dealing with color images that have separate red, green, and blue channels.
The key issue revolves around correctly interpreting pointer data returned by Halcon methods like GetImagePointer3. When this me ...
Posted on Sat, 09 May 2026 22:14:49 +0000 by dickd