solve the error for "random.randint(0, 0)"

[wangershi]

If "picture.size[0] == width" or "picture.size[1] == height", there will be an Exception beacause the code "random.randint(0, 0)", so I judge if "picture.size[0] == width" or "picture.size[1] == height" to prevent this happen.

[codecov-io]

Codecov Report

Merging #11 into master will decrease coverage by 0.44%.
The diff coverage is 0%.

@@            Coverage Diff             @@
##           master      #11      +/-   ##
==========================================
- Coverage   54.76%   54.32%   -0.45%     
==========================================
  Files           7        7              
  Lines         493      497       +4     
==========================================
  Hits          270      270              
- Misses        223      227       +4

Impacted Files	Coverage Δ
...xtRecognitionDataGenerator/background_generator.py	31.91% <0%> (-2.97%)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 9eec3c9...cc7085e. Read the comment docs.

[Belval]

Nice catch there.