Image Pyramids with OpenCV | Computer Vision | Python | OpenCV | Code Warriors

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In this video we will discuss about Image Pyramids in CV.

Computer Vision is an ever-evolving area of study, with specialized custom tasks and techniques to target application domains. I visualize its market value growing as fast as its capabilities. With our intelligence and interest, we will soon be able to blend our abilities with Computer Vision and achieve new heights.

The idea to impart human intelligence and instincts to a computer seems rather effortless. Conceivably, because it is solved by very young children too, but we often tend to forget the limitations of computers as compared to our biological capabilities. The complexity of vision perception infinitely varies and is ever dynamic in the case of human beings itself, let alone Computer intelligence.

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[Sandeepkishor]

pyrUp() and pyrDown() functions are really helpful while increasing / decreasing the size of image (smoothing is one drawback)
video needs a big THANKS

[samrithad]

It was a great video. We understood the use of Pyramids for scaling images. pyrUp creates an image double the original size while pyrDown halves the size. However their use leads to decrease in clarity. Laplacian function is used to improve the resolution. The laplacian takes the smallest gaussian image and does subtraction between low and high resolution images to get a kinda edge.

[dharnishrsd]

In this video I learned about pyramid methord gaussian and laplacian methords too

[jishnuk]

In this lesson I learned pyramid method in image, changing resolution or size by pyrup and pyrdown

[jaisonj]

learnt about pyramid methods with openCV

[harshitachaurasia]

In this i learnt about image pyramids using pyrUp, pyrDown, gaussian and laplacian pyramid

[chaithanyareddy]

In this vedio, I learnt about making pyramids of images using opencv, also are of two types gussian, Laplace .

[pavithradevim]

In this vedio I have learned to make the pyramid of images using
1) CV2.pyrDown()

[viboosithasrins]

i learnt about Image pyramids and pyramid methods on How to increase the size by using pyrup and decrease by using pyrdown
Using Gaussian pyramid and laplacian pyramid

[ScoreboardLives]

#Summary
In this video I learnt about image
#codewarriors
#ComputerVision

[chandrashekharm]

Summary of this video as follows -

1. Pyramid method is used during blending, adding two images together and scaling of images.
2. Different factors of Pyramid method includes
* cv2.pyrUp() - increases the size to double of its original size
* cv2.pyrDown() - decreases the size to half.
3. Gaussian pyramid - In this subsequent images are weighted down using a Gaussian average and scaled down.
4.Laplacian pyramid - It is very similar to a Gaussian pyramid but saves the difference image of the blurred versions between each levels.

[keerthanalokeshkumar]

In today's session, i have learnt about the image pyramids which comprises of imread, pyrdown, pyrup, gaussian, append, subtract where the size of the image can be decreased as much as possible. Even the image can be changed to portrait format and that image's size can also be decreased.

[gowthameaswark]

Learnt on
-Pyramid methods like Up and Down, gaussian and laplacian pyramid

[noushadkhan]

I wanted video on gausian and laplacian pyramid plz sir make it

[radhikakedia]

In this video we learnt about Image Pyramid which is used for changing the resolution of image or resize it. We did this with two methods namely Gaussian and Laplacian(looks more like edge detection) and also the pyramid functions pyrUp and pyrDown.

[rohinisingh]

Summay:
-pyramid methods
Eg pyrup -- increase size
pyrdown-- decrease size
- gaussian and laplacian pyramid

[adityashah]

Summary -
In this video pyramid up and down are explained using Gaussian function and laplacian of Gaussian (log) is also practically implemented in python using cv2 library.

[srishtibhandarkar]

This video described Image Pyramids concept
-->using pyrup() and pyrdown() functions
-->Implementing gaussian and laplacian pyramid concept on images
-->laplacian pyramid is created from smallest image

[rounakagarwal]

In these video:
1. Image pyramids(imp in image blending)
2. use of cv.pyrDown
3. images getting blurred/smoothened by increase or decrease in size
4. gaussian and laplace pyramid working

[maitrishah]

Summary:
Image pyramids
The size of the image is decreased and increased using pyrdown and pyrup
Gaussian pyramid is also implemented
Laplacian pyramid is also implemented using the results of Gaussian pyramid
The decrease in the size of image affect the quality of image (blurred)