Computer Vision Dataset for Chinese Mahjong Tiles [Original]

Structures

• Raw, unsliced images are located under ./raw-images
• Unscaled tile images are located under ./raw-tiles
• Scaled, ready-to-use images are located under ./tiles-resized
• Csv file containing tagged labels of the images, and the csv template file are located under ./tiles-data
• Raw, unsliced images for untagged tiles are located under ./untagged-images-raw
• Untagged tile images are located under ./untagged-tiles

Data

• Images are mostly scraped from Google image search, Ebay and Alibaba
• Scaled images have the dimension 240(W) x 320(H). Format used are .jpg

Ready to use data bundle can be located at the root of the repo, namely train.zip. It contains

• images folder for mahjong tile images
• data.csv for image labels
• Tagged labels are stored in csv with the following format:

image-name	label	label-name
1.jpg	38	bonus-winter
...	...	...

label is the index of the respective class of the image, see the classes below

Classes

table-name	table-index
dots-1	1
dots-2	2
dots-3	3
dots-4	4
dots-5	5
dots-6	6
dots-7	7
dots-8	8
dots-9	9
bamboo-1	10
bamboo-2	11
bamboo-3	12
bamboo-4	13
bamboo-5	14
bamboo-6	15
bamboo-7	16
bamboo-8	17
bamboo-9	18
characters-1	19
characters-2	20
characters-3	21
characters-4	22
characters-5	23
characters-6	24
characters-7	25
characters-8	26
characters-9	27
honors-east	28
honors-south	29
honors-west	30
honors-north	31
honors-red	32
honors-green	33
honors-white	34
bonus-spring	35
bonus-summer	36
bonus-autumn	37
bonus-winter	38
bonus-plum	39
bonus-orchid	40
bonus-chrysanthemum	41
bonus-bamboo	42

Refer the classes of mahjong tiles here

Feel free contribute to this repo with your own data.

License

Open sourced under MIT License

Acknowlegement

Foto von Albert Hu auf Unsplash