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where to get simple.jpg

asked 2015-10-06 11:05:43 -0500

Jochen0x90h gravatar image

updated 2015-10-07 11:11:43 -0500

theodore gravatar image


Where do I get the sample images simple.jpg, chessboard.jpg, home.jpg, fly.png and others from the Python feature detection and description tutorial ( )?


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they seem to be missing from the source folder. I guess you can open a bug report / request about adding the image files. I managed though to find the home.jpg file elsewhere.

theodore gravatar imagetheodore ( 2015-10-06 11:44:33 -0500 )edit

They are indeed missing ... if someone is able to retrieve them somewhere, I am willing to add them back!

StevenPuttemans gravatar imageStevenPuttemans ( 2015-10-07 04:15:59 -0500 )edit
LBerger gravatar imageLBerger ( 2015-10-07 10:40:13 -0500 )edit

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answered 2015-10-07 10:18:49 -0500

theodore gravatar image

updated 2015-10-07 10:47:54 -0500

I managed to retrieve the home.jpg, simple.jpg in their original form and the fly.png in a processed form. I had to use the inpaint() functionality in order to achieve as much as possible something close to the original version of the image, since I could not find it somewhere. For the chessboard.jpg I cannot get something related to the original image but I guess any sample related to a chessboard pattern would work similarly with the image the tutorial's author is using.


we found the fly.jpg many thanks to @LBerger ;-)

And the images are here:


image description

image description


image description


image description

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reverse engineering ++ ;)

berak gravatar imageberak ( 2015-10-07 10:20:42 -0500 )edit

Thanks a lot!

Jochen0x90h gravatar imageJochen0x90h ( 2015-10-07 12:40:55 -0500 )edit

I will add them today! You can find the PR here:

StevenPuttemans gravatar imageStevenPuttemans ( 2015-10-08 03:45:59 -0500 )edit

by the way the original name of simple is blox which is more meaningful ( Therefore I would suggest to change the name to blox, also in the example code

Jochen0x90h gravatar imageJochen0x90h ( 2015-10-08 04:06:35 -0500 )edit

@Jochen0x90h will do so!

StevenPuttemans gravatar imageStevenPuttemans ( 2015-10-08 04:19:23 -0500 )edit

BTW which sample code uses simple.jpg? I cannot see it.

StevenPuttemans gravatar imageStevenPuttemans ( 2015-10-08 04:23:16 -0500 )edit

This code uses simple.jpg:

Jochen0x90h gravatar imageJochen0x90h ( 2015-10-08 04:40:04 -0500 )edit

Everythin was added! Thank you for the input!

StevenPuttemans gravatar imageStevenPuttemans ( 2015-10-12 06:37:10 -0500 )edit

answered 2016-10-22 08:55:33 -0500

FunKing gravatar image

updated 2016-10-24 10:55:08 -0500

Many tutorials have missing images. I've asked Abid Rahman K (one of the authors of the tutorials) for help to find the missing files, but in the meantime, I'll share what I've seen as missing, and what I've found on the web:

Basic Operations on Images is missing: opencv_logo.png

Arithmetic Operations on Images is missing: ml.png, opencv_logo.jpg (actually, it is a different file from the one currently in the source)

Geometric Transformations of Imagesis missing: drawing.png, sudokusmall.png. Found replacement/original for sudokusmall.png at

Image Thresholdingis missing: gradient.png, dave.jpg, noisy2.png. Found replacement/original for dave.jpg at (I've created a version of noisy2.png, but the results were somewhat different from the tutorial)

Smoothing Images is missing: opencv_logo.png. It seems to be a copy of doc/opencv-logo-white.png

Image Pyramids is missing: apple.jpg, orange.jpg (originals from here)

I'll try to and more details later.

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thanks for caring !

berak gravatar imageberak ( 2016-10-22 09:02:45 -0500 )edit

@FunKing, I will take again a look at this and supply a PR with the necessary resources if we can locate them again.

StevenPuttemans gravatar imageStevenPuttemans ( 2016-10-24 02:40:05 -0500 )edit

A PR for all of this: Still 2 images that I did not find...

StevenPuttemans gravatar imageStevenPuttemans ( 2016-10-25 04:51:28 -0500 )edit
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Asked: 2015-10-06 11:05:43 -0500

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Last updated: Oct 24 '16