Detectron: About SCALE and MAX_SIZE

Created on 23 Jul 2018 · 3Comments · Source: facebookresearch/Detectron

All images of my dataset is 720 * 1280 and 1280 * 720(height*weight), in yaml:

  SCALES: (800,)
  MAX_SIZE: 1333

Does it mean the image will be resize as 800 * 1280 and 1280 * 800?

Source

lilichu

Most helpful comment

No it will be resized to 750x1333. See https://github.com/facebookresearch/Detectron/blob/b5dcc0fe1d091cb70f9243939258215dd63e3dfa/detectron/utils/blob.py#L100-L125 for the implementation.

ppwwyyxx on 23 Jul 2018

👍4

All 3 comments

No it will be resized to 750x1333. See https://github.com/facebookresearch/Detectron/blob/b5dcc0fe1d091cb70f9243939258215dd63e3dfa/detectron/utils/blob.py#L100-L125 for the implementation.

ppwwyyxx on 23 Jul 2018

👍4

Hi! The ratio of length to width of the picture in Ms COCO is different, if we re-scale the images that their shorter side is 800, we get the different ratio. In the end, the longer side of images is different. The size of the training images is different . But the input_image should be at the same size. How can I solve this problem? Thx~ @ppwwyyxx @