Convert annotation formats

How To Convert Udacity TXT to meituan/yolov6

In this guide, we show you how to convert data between the Udacity and MT-YOLOv6 formats for free. You can use your converted data to train MT-YOLOv6 models and other models that support the MT-YOLOv6 format.

Udacity TXT

The format used by the Udacity Self Driving Car dataset.

Below, learn the structure of Udacity TXT.

udacity.txt
1478019952686311006.jpg 950 574 1004 620 0 "car"
1478019952686311006.jpg 1748 482 1818 744 0 "pedestrian"
1478019953180167674.jpg 872 586 926 632 0 "car"
1478019953689774621.jpg 686 566 728 618 1 "truck"
1478019953689774621.jpg 716 578 764 622 0 "car"
1478019953689774621.jpg 826 580 880 626 0 "car"
1478019953689774621.jpg 1540 488 1680 608 1 "car"
1478019953689774621.jpg 1646 498 1848 594 1 "car"
1478019954186238236.jpg 662 562 710 616 1 "truck"
1478019954186238236.jpg 686 576 730 628 0 "car"

meituan/yolov6

MT-YOLOv6 uses a modified version of YOLO Darknet annotations.

Below, learn the structure of meituan/yolov6.

The annotation format is the same as YOLOv5 but with changes to the YAML file. Each image has one txt file with a single line for each bounding box. The format of each row is

class_id center_x center_y width height

where fields are space delimited, and the coordinates are normalized from zero to one.

Note: To convert to normalized xywh from pixel values, divide x (and width) by the image's width and divide y (and height) by the image's height.

001.txt
1 0.617 0.3594420600858369 0.114 0.17381974248927037
1 0.094 0.38626609442060084 0.156 0.23605150214592274
1 0.295 0.3959227467811159 0.13 0.19527896995708155
1 0.785 0.398068669527897 0.07 0.14377682403433475
1 0.886 0.40879828326180256 0.124 0.18240343347639484
1 0.723 0.398068669527897 0.102 0.1609442060085837
1 0.541 0.35085836909871243 0.094 0.16952789699570817
1 0.428 0.4334763948497854 0.068 0.1072961373390558
1 0.375 0.40236051502145925 0.054 0.1351931330472103
1 0.976 0.3927038626609442 0.044 0.17167381974248927

The `data.yaml` file contains configuration values used by the model to locate images and map class names to class_id's.

data.yaml
train: ./images/train
val: ./images/valid
test: ./images/test

nc: 3
names: ['head', 'helmet', 'person']

Step 1: Create a free Roboflow public workspace

Roboflow is a universal conversion tool for computer vision annotation formats. The Public plan is the best way for those exploring personal projects, class assignments, and other experiments to try Roboflow. To convert your dataset, start by creating a free workspace on the Public plan.

Create Roboflow Workspace

Step 2: Upload your data into Roboflow

Once your account has been created, click Create New Project. (opens in a new tab)

Roboflow's create project form, with Object Detection selected as the project type

Upload your data to Roboflow by dragging and dropping your Udacity TXT images and annotations into the upload space.

Roboflow's upload page, with a drag-and-drop area for images, annotations, videos and PDFs

Step 3: Generate Dataset Version

Next, click "Generate New Version" to generate a new version of your dataset:

Roboflow's Generate a Dataset Version page, showing the source images and train/test split for a new version

You can then apply any preprocessing or augmentation steps to your dataset:

The augmentation step of a new dataset version, with 90° Rotate and Brightness added

Step 4: Export Dataset Version

After generating, you will be prompted to Export your dataset. You can choose to receive your dataset as a .zip file or a curl download link. Choose meituan/yolov6 when asked in what format you want to export your data. You will see a dropdown with various options like this:

Roboflow's Download dialog, with the export format list open and COCO highlighted

Congratulations, you have successfully converted your dataset from Udacity TXT format to meituan/yolov6 format!

Video Tutorial

Convert Computer Vision Annotation Formats Tutorial

Want to dive deeper into converting annotation formats with Roboflow? In the tutorial below, we explore how to convert your data in the Roboflow dashboard. We also discuss rejecting annotations and train-test-validation splits.

Frequently Asked Questions

Yes! It is free to convert Udacity TXT data into the meituan/yolov6 format on the Roboflow platform.

If you have between a few and a few thousand images, converting data between these formats will be quick. But, the time it takes to convert between data formats increases with the more images you have.

Show guide

Convert Udacity TXT to other formats

Convert other formats to meituan/yolov6

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