object of type 'Mask' has no len()

[201722111112027]

Hello, executing self_ trax = trax.Server([trax.Region.RECTANGLE], [trax.Image.PATH], channels, metadata={"vot": "python"}) Until this section of code, there have been continuous errors: object of type 'Mask' has no len()

object of type 'Mask' has no len()
Traceback (most recent call last):
File "/home/host/anaconda3/envs/vot/lib/python3.8/site-packages/vot/utilities/cli.py", line 388, in main
do_evaluate(args)
File "/home/host/anaconda3/envs/vot/lib/python3.8/site-packages/vot/utilities/cli.py", line 182, in do_evaluate
run_experiment(experiment, tracker, workspace.dataset, config.force, config.persist)
File "/home/host/anaconda3/envs/vot/lib/python3.8/site-packages/vot/experiment/init.py", line 160, in run_experiment
experiment.execute(tracker, sequence, force=force, callback=progress)
File "/home/host/anaconda3/envs/vot/lib/python3.8/site-packages/vot/experiment/multistart.py", line 78, in execute
_, properties, elapsed = runtime.initialize(proxy.frame(0), self._get_initialization(proxy, 0))
File "/home/host/anaconda3/envs/vot/lib/python3.8/site-packages/vot/tracker/trax.py", line 429, in initialize
return self._process.initialize(frame, region, tproperties)
File "/home/host/anaconda3/envs/vot/lib/python3.8/site-packages/vot/tracker/trax.py", line 256, in initialize
region, properties, elapsed = self._client.initialize(tlist, tregion, properties)
File "/home/host/anaconda3/envs/vot/lib/python3.8/site-packages/trax/client.py", line 178, in initialize
tobjects = wrap_objects(objects)
File "/home/host/anaconda3/envs/vot/lib/python3.8/site-packages/trax/init.py", line 374, in wrap_objects
tlist = ObjectListWrapper(trax_object_list_create(len(objects)))
TypeError: object of type 'Mask' has no len()

May I ask how to solve it?

[lukacu]

Hello, please tell us more, which dataset and stack were you using, what is OS? The tracker is implemented in Python from what I have seen?

[201722111112027]

they ***@***.***  Yes, my tracker is implemented using Python. I am using the vot20202 dataset, and the stack data is as follows: title: VOT-ST2020 challenge dataset: vot:vot-st2020 url: http://www.votchallenge.net/vot2020/ experiments:   baseline:     type: multistart     analyses:       - type: multistart_eao_score         name: eaoscore         low: 115         high: 755       - type: multistart_eao_curve         name: eaocurve         high: 755       - type: multistart_average_ar         name: ar   realtime:     type: multistart     realtime:       grace: 3     analyses:       - type: multistart_eao_score         name: eaoscore         low: 115         high: 755       - type: multistart_eao_curve         name: eaocurve         high: 755       - type: multistart_average_ar         name: ar   unsupervised:     type: unsupervised     repetitions: 1     analyses:       - type: average_accuracy         name: accuracy         burnin: 1 I am using the Linux operating system, Ubuntu 22.04.  The program is executing to self._ trax = trax.Server([trax.Region.RECTANGLE], [trax.Image.PATH], channels, metadata={"vot": "python"}) During this period, there was an error in the console output. The incorrect content is：object of type 'Mask' has no len().

…

------------------ 原始邮件 ------------------ 发件人: "votchallenge/toolkit" ***@***.***>; 发送时间: 2025年3月26日(星期三) 下午3:51 ***@***.***>; ***@***.******@***.***>; 主题: Re: [votchallenge/toolkit] object of type 'Mask' has no len() (Issue #135) Hello, please tell us more, which dataset and stack were you using, what is OS? The tracker is implemented in Python from what I have seen? — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you authored the thread.Message ID: ***@***.***> lukacu left a comment (votchallenge/toolkit#135) Hello, please tell us more, which dataset and stack were you using, what is OS? The tracker is implemented in Python from what I have seen? — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you authored the thread.Message ID: ***@***.***>

[201722111112027]

Hello, please tell us more, which dataset and stack were you using, what is OS? The tracker is implemented in Python from what I have seen?

Yes, my tracker is implemented using Python. I am using the vot20202 dataset, and the stack data is as follows:
title: VOT-ST2020 challenge
dataset: vot:vot-st2020
url: http://www.votchallenge.net/vot2020/
experiments:
baseline:
type: multistart
analyses:
- type: multistart_eao_score
name: eaoscore
low: 115
high: 755
- type: multistart_eao_curve
name: eaocurve
high: 755
- type: multistart_average_ar
name: ar
realtime:
type: multistart
realtime:
grace: 3
analyses:
- type: multistart_eao_score
name: eaoscore
low: 115
high: 755
- type: multistart_eao_curve
name: eaocurve
high: 755
- type: multistart_average_ar
name: ar
unsupervised:
type: unsupervised
repetitions: 1
analyses:
- type: average_accuracy
name: accuracy
burnin: 1

I am using the Linux operating system, Ubuntu 22.04. 
The program is executing to self._ trax = trax.Server([trax.Region.RECTANGLE], [trax.Image.PATH], channels, metadata={"vot": "python"}) During this period, there was an error in the console output. The incorrect content is：object of type 'Mask' has no len().

I really need the results on this dataset, thank you very much for your help.