16 - Understanding digital images for Python processing

Digital image processing in Python is mostly done via numpy array manipulation. This video provides a quick overview of digital images, their data types and numpy array manipulation to modify images.

[jingyiwang]

This is such an amazing video! I will follow this whole tutorial to self-study image processing. You help me a lot in one project with other classmates and professor. Thanks!😃

[이세영-qc]

Thank you very much, sir. This video is realy good introduction. I will keep studying and learning image processing with python through your lectures. Again, thank you so much for learning this valueable things in an easiest way.

[dipankarrahuldey]

It was an awesome introduction.. It feels nice when images are created with self defined arrays

[zeynepsozen]

Hi sir. I'm from Turkey, thanks a lot for lessons. You're a life saver :)

[wiscgaloot]

THANK YOU! I am trying to duplicate in Python what I am doing in Matlab with the Image Processing toolbox, and I'm confident your videos will get me there.

[nototheilluminati]

Wow The most under rated channel on youtube!

[roitbhattarai]

im from nepal and a student of Biomedical Engineering thank you so much

[safathossain]

17:00

if you get error at the line:

my_image[10:200, 10:200, :] = [255, 0, 0]

and the error says something like "could not broadcast input array from shape (3, ) into shape (190, 190, 4)"
replace the code with,

my_image[10:200, 10:200, :3] = [255, 0, 0]

Reason:
because some image is RGBA (Red Green Blue Alfa) not RGB. the alfa value has a range of 0 to 1. that is why we have to define the third dimension [10:200, 10:200, 0:3] not [10:200, 10:200, 0:4].

To know more search the keyword "RGBA".

[PUBUDUCG]

No words to explain your help here . . . . !

[vishnuvardhan]

cool thanks, I need to revisit all ur videos. Very in detail and informative thanks a lot

[hamidtipu]

I start to learn this whole session of videos

[lucasgregorio_]

This playlist starts on the number 16
Is the playlist "Python basics for beginners" the right sequence from 1 to 15?

[naveedarif]

that's great sir! same the FYP project provided us by the mentor to Hide the Data using 3D image as Cover.
but i need a 3D image and its formats. which formats can access the elements of 3d image?

[oliverhumberto]

Hi, professor, I'm From Brazil, tanks a lot for your course.

[devilkingyt]

Can you provide a link containing all the images that are used in the whole playlist. It would be very helpful

[liquidred]

Why did he create a numpy array of 500 by 500 with his np.random.random function when the images were either arrays of [ x, y, 3] (for .jpgs) or [x, y, z, 4] (for .pngs)?

[mahmoudbenmami]

why the shape of random image is (500, 500 ), it is an RGB colored image, where is the 3rd channel ?

[mslbabitha]

Hello sreeni, thank you for wonderful videos, I am pursuing PhD in " Image reconstruction for biomedical applications", Please can you provide the videos for image reconstruction

[jingyiwang]

Can I also ask a question? I am wondering how I can get the image that you are referring to in the video. I really want to have the image so that I can follow your tutorial more closely. Thanks!

[LCT]

Hi I'm a research engineering intern in the US. This series will be a big help, but I am fairly new to image processing with python. Would you know why I'm getting the import error: cannot import name '_to_unmasked_float_array' from 'matplotlib.cbook' (unknown location) ? I've uninstalled and reinstalled the matplotlib package multiple times with Anaconda and I get the same error. The error happens during the line 'from matplotlib import pyplot as plt'. I've checked the file system within matplotlib/cbook and indeed I can't locate files '_to_unmasked_float_array' or 'simple_linear_interpolation' anywhere.