[Docs] modify the img in inference_detector(model, img)

[chg0901]

In inference_detector(model, img), the img should be an image object or matrix not an img path

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Motivation

Please describe the motivation of this PR and the goal you want to achieve through this PR.

Modification

Please briefly describe what modification is made in this PR.

BC-breaking (Optional)

Does the modification introduce changes that break the backward-compatibility of the downstream repos?
If so, please describe how it breaks the compatibility and how the downstream projects should modify their code to keep compatibility with this PR.

Use cases (Optional)

If this PR introduces a new feature, it is better to list some use cases here, and update the documentation.

Checklist

1. Pre-commit or other linting tools are used to fix the potential lint issues.
2. The modification is covered by complete unit tests. If not, please add more unit test to ensure the correctness.
3. If the modification has potential influence on downstream projects, this PR should be tested with downstream projects, like MMDet or MMCls.
4. The documentation has been modified accordingly, like docstring or example tutorials.

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All committers have signed the CLA.

[ZwwWayne]

Hi @chg0901

Thanks for your kind PR. It seems that CLA is not signed. Could you sign the CLA so that eventually we could merge this PR after review? You can check the contents and follow the instruction in the communication box shown as below

[chg0901]

Hi @chg0901

Thanks for your kind PR. It seems that CLA is not signed. Could you sign the CLA so that eventually we could merge this PR after review? You can check the contents and follow the instruction in the communication box shown as below

Hello, @ZwwWayne , I have signed the CLA. Thank you for your help. Have a nice day~

[ZwwWayne]

Hi @chg0901 ,
Thanks for your kind contribution. Would you like to fix the lint issue so that we could merge this PR?
The details can be found by clicking the item of lint check as shown below

Please fix the lint issue. You can install pre-commit hook on your machine like following:

pip install -U pre-commit
cd mmdeploy
pre-commit install

Then you can run pre-commit run --all-file to check whether there are lint errors