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OpenCV Python Tutorial For Beginners – Smoothing Images | Blurring Images OpenCV

May 13, 2019 admin 0

In this post on OpenCV Python Tutorial For Beginners, I am going to show How to do Smoothing Images or […]

Morphological Transformations opencv python

OpenCV Python Tutorial For Beginners – Morphological Transformations

May 8, 2019 admin 0

In this post on OpenCV Python Tutorial For Beginners, I am going to show How to use Morphological Transformations with […]

OpenCV Python Tutorial For Beginners – matplotlib with OpenCV

May 3, 2019 admin 0

In this post on OpenCV Python Tutorial For Beginners, I am going to show How to use matplotlib with OpenCV. […]

Learn to draw different geometric shapes with OpenCV

OpenCV Python Tutorial For Beginners – Draw geometric shapes on images using Python OpenCV

May 2, 2019 admin 0

In this post on OpenCV Python Tutorial For Beginners, I am going to show How to Draw geometric shapes on […]

OpenCV Python Tutorial For Beginners 1 - intro to opencv

OpenCV Python Tutorial For Beginners – How to Read, Write, Show Videos from Camera in OpenCV

May 1, 2019 admin 0

In this post on OpenCV Python Tutorial For Beginners, I am going to show How to Read, Write, Show Videos […]

OpenCV Python Tutorial For Beginners – How to Read, Write, Show Images in OpenCV

May 1, 2019 admin 0

In this post on OpenCV Python Tutorial For Beginners, I am going to show How to Read, Write, Show Images […]

OpenCV Python Tutorial For Beginners – How to Bind Trackbar To OpenCV Windows

March 21, 2019 admin 0

In this post on OpenCV Python Tutorial For Beginners, I am going to show How to Bind Trackbar To OpenCV […]

SQLite vs MySQL: 16 Must-Know Differences Between The Two Leading Databases

March 5, 2019 admin 0

SQLite vs MySQL: 16 Must-Know Differences Between The Two Leading Databases There are two types of database management systems, relational […]

How to Install VirtualBox Guest Additions on Debian 9 Virtual Machine (VM)

August 21, 2018 admin 0

This post shows How do I install VirtualBox Guest Additions on Debian 9 so you can resize your Debian 9 […]

Scala – Reduce, fold or scan (Left/Right)

August 16, 2018 admin 0

// Scala - Reduce, fold or scan (Left/Right)
//reduceLeft, reduceRight, foldLeft, foldRight, scanLeft, scanRight
object Demo {
  val lst = List(1, 2, 3, 5, 7, 10, 13);
  val lst2 = List("A", "B", "C");
	def main(args: Array[String]) {
	  println(lst.reduceLeft(_ + _));
	  println(lst2.reduceLeft(_ + _));
	  println(lst.reduceLeft((x,y) => {println(x + " , "+ y); x+y;}));
	  
	  println(lst.reduceLeft(_ - _));
	  println(lst.reduceRight(_ - _));
	  println(lst.reduceRight((x,y) => {println(x + " , "+ y); x-y;}));
	  
	  
	  println(lst.foldLeft(100)(_ + _));
	  println(lst2.foldLeft("z")(_ + _));
	  
	  
	  println(lst.scanLeft(100)(_ + _));
	  println(lst2.scanLeft("z")(_ + _));

	}
}

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