drawing segmentation points on png images

[senemaktas]

Hello,
Thank you for the dataset. I have download the dataset, annotations, masks, images.

I am trying to write points to images in png format by taking points from annotations json files.
However, I cannot see the "points" on the image. (segmentation points).

How can i draw segmentations points on png images? Aren't the "points" specified in json files segmentation points?

The piece of code I use is as follows:

      xyz_points = each_element["points"]
      # get x and y as integer
      xy_points = [[int(each[:2][0]), int(each[:2][1])] for each in xyz_points]
      # drawing
      pts = np.array(xy_points, np.int32)
      pts = pts.reshape((-1, 1, 2))
      cv2.polylines(img, [pts], isClosed=True, color=(0, 255, 0), thickness=80)
      cv2.drawContours(img, pts, -1, (0, 255, 0), 80)

Sample image and json matches:
name: TCGA-OL-A66I-DX1_xmin38433_ymin22957_MPP-0.2500.png TCGA-OL-A66I-01Z-00-DX1.8CE9DCAB-98D3-4163-94AC-1557D86C1E25.json
name: TCGA-OL-A66P-DX1_xmin30143_ymin20310_MPP-0.2500.png TCGA-OL-A66P-01Z-00-DX1.5ADD0D6D-37C6-4BC9-8C2B-64DB18BE99B3.json
name: TCGA-OL-A6VO-DX1_xmin88416_ymin188485_MPP-0.2500.png TCGA-OL-A6VO-01Z-00-DX1.291D54D6-EBAF-4622-BD42-97AA5997F014.json
name: TCGA-OL-A97C-DX1_xmin68058_ymin32495_MPP-0.2500.png TCGA-OL-A97C-01Z-00-DX1.BDEEDEE2-6D07-4046-A8A9-D6FF8F337393.json
name: TCGA-S3-AA10-DX1_xmin43039_ymin23986_MPP-0.2500.png TCGA-S3-AA10-01Z-00-DX1.C0468882-0DD8-4FC5-8C2F-E18BE8000F69.json
name: TCGA-S3-AA15-DX1_xmin55486_ymin28926_MPP-0.2500.png TCGA-S3-AA15-01Z-00-DX1.A2456A4A-E6E8-4429-8F09-B997AA497BB0.json

thank you.