Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Write a clever cropping/masking algorithm for the dot-to-dot #120

Open
JackBuck opened this issue Mar 8, 2017 · 1 comment
Open

Write a clever cropping/masking algorithm for the dot-to-dot #120

JackBuck opened this issue Mar 8, 2017 · 1 comment
Assignees
@JackBuck
Labels
enhancement
Projects
Kanban
Milestone
DotToDot

Comments

@JackBuck
Copy link
Owner

JackBuck commented Mar 8, 2017

We need to be able to recognise numbers in an image containing multiple numbers (or one number and parts of other numbers).

We therefore need an algorithm which returns an image containing only the text (i.e. number and spot) for one number.

This could be done by

  • finding contours
  • grouping contours by proximity (e.g. by bounding box centre, or shortest distance between contours)

To begin with, we can probably assume that the desired spot is fairly central in the image. So if there are multiple spots, just consider the most central. A further enhancement could try to determine whether a spot in the image also has it's number fully in the image and so recognise multiple spots in the image.
@JackBuck JackBuck added this to the DotToDot milestone Mar 8, 2017
@JackBuck JackBuck added this to Short Term Todo's in Kanban Mar 8, 2017
@JackBuck JackBuck moved this from Short Term Todo's to In Progress in Kanban Mar 14, 2017
@JackBuck JackBuck self-assigned this Mar 14, 2017
JackBuck added a commit that referenced this issue Mar 16, 2017
@JackBuck
#120 :: Add script which finds the spot closest to the centre
0a5594d
JackBuck added a commit that referenced this issue Mar 17, 2017
@JackBuck
#120 :: Add functionality to identify convex contours corresponding t…
6364b6e 
…o the central number
JackBuck added a commit that referenced this issue Mar 17, 2017
@JackBuck
#120 :: Crop to show only the number in the centre
04171ec
JackBuck added a commit that referenced this issue Mar 17, 2017
@JackBuck
#120 :: Call existing number recognition at end of script and rename
036c4e4 
Also made the file executable
JackBuck added a commit that referenced this issue Mar 18, 2017
@JackBuck
#120 :: Make display of images optional
2c45492
JackBuck added a commit that referenced this issue Mar 18, 2017
@JackBuck
#120 :: Tweak _clean_image() to get new set of numbers to be recognised
0eb0bf3
JackBuck added a commit that referenced this issue Mar 19, 2017
@JackBuck
#120 :: Refactor some of the functionality into the number_recognitio…
8aefbaf 
…n module
JackBuck added a commit that referenced this issue Mar 22, 2017
@JackBuck
#120 :: Beginning to refactor work into a DotToDotImage class
9ed490b
JackBuck added a commit that referenced this issue Mar 22, 2017
@JackBuck
#120 :: Refactor number recognition to use new DotToDotImage class
df3663a
JackBuck added a commit that referenced this issue Mar 22, 2017
@JackBuck
#120 :: Delete redundant code
8b57498
JackBuck added a commit that referenced this issue Mar 22, 2017
@JackBuck
#120 :: Refactor to help me debug
bd46bb7
JackBuck added a commit that referenced this issue Mar 22, 2017
@JackBuck
#120 :: Bugfix - Was passing point to opencv as (y,x) rather than (x,y)
0b0d984
JackBuck added a commit that referenced this issue Mar 23, 2017
@JackBuck
#120 :: Moved display of intermediate images to DotToDotImage class
87c2291
JackBuck added a commit that referenced this issue Mar 23, 2017
@JackBuck
#120 :: Added tests for bat images and fixed bug in creation of Numbe…
347ff6f 
…r objects
JackBuck added a commit that referenced this issue Mar 23, 2017
@JackBuck
#120 :: Increase maximum_pixels_between_contours to make 40pt tests p…
832073d 
…ass.

This is the best 'quick' solution since the spot radius doesn't increase in proportion with the fontsize.
JackBuck added a commit that referenced this issue Mar 23, 2017
@JackBuck
#120 :: Save intermediate images in debug folder
db5b878
@JackBuck
Copy link
Owner Author

Merged to milestone branch

@JackBuck JackBuck moved this from In Progress to Complete in Kanban Mar 23, 2017
@JackBuck JackBuck moved this from Complete to Ready for Review in Kanban Mar 23, 2017
@JackBuck JackBuck moved this from Ready for Review to Complete in Kanban Mar 23, 2017
@JackBuck JackBuck moved this from Complete to Ready for Review in Kanban Mar 24, 2017
@JackBuck JackBuck reopened this Mar 24, 2017
@JackBuck JackBuck moved this from Ready for Review to Complete in Kanban Mar 24, 2017
@JackBuck JackBuck moved this from Complete to Ready for Review in Kanban Mar 26, 2017
@JackBuck JackBuck reopened this Mar 26, 2017
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Assignees

@JackBuck JackBuck

Labels
enhancement
Projects
Kanban
Ready for Review
Milestone
DotToDot
Development

No branches or pull requests
1 participant
@JackBuck