mnisten
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Published
20 hours ago •
nyanp
nyanp
convert image files to mnist idx format
mnisten : image files to idx format converter
mnisten is a library to convert image files to idx format binaries.
- assign label id automatically by directory-name (lexicographical order)
- auto resizing
- random-shuffling
- generate train/test file
#example
image files:
.\
|--foo
| |--a.bmp
| |--b.bmp
| +--1.txt
+--bar
|--c.bmp
|--d.bmp
+--buzz
+--e.bmp
- a and b.bmp => label 1
- c and d.bmp => label 0
- 1.txt and e.bmp => ignored
#usage
mnisten -d .\ -o prefix -s 32x24
then create:
- prefix_train_images.idx3
- prefix_train_labels.idx1
- label.txt
- log directory-name => label-id
| option | parameters | meaning | required | default |
|---|---|---|---|---|
| --dir,-d | directory-name(string) | root directory of images | yes | - |
| --output,-o | prefix(string) | prefix of output idx files | no | "" |
| --num-tests,-n | num(int) | number of test data (if 0, all images are treated as training data) | no | 0 |
| --size,-s | WxH(string) | size of each image data | no | 32x32 |
| --without-shuffle,-w | (none) | disable data shuffling | no | false |
#prerequisites
- OpenCV
- boost (boost/filesystem)
#build
make
or build vc/mnisten.sln
nyanp