Fix spelling, spacing, and unused variables

[ryan1288]

Minor PR fixing spelling mistakes, spacing, and removed unused variables. Issue partially mentioned in #135 (comment).

[ryan1288]

Additional note: While I did not implement this change, I observed that the following was declared but unused in the C++ demos.

void setBackendAndTarget(dnn::Backend bId, dnn::Target tId)
{
    this->backendId = bId;
    this->targetId = tId;
    this->net.setPreferableBackend(this->backendId);
    this->net.setPreferableTarget(this->targetId);
}

[fengyuentau]

open

[ryan1288]

Fixed! Also updated several more typos.

[fengyuentau]

Additional note: While I did not implement this change, I observed that the following was declared but unused in the C++ demos.

void setBackendAndTarget(dnn::Backend bId, dnn::Target tId)
{
    this->backendId = bId;
    this->targetId = tId;
    this->net.setPreferableBackend(this->backendId);
    this->net.setPreferableTarget(this->targetId);
}

Which particular demo?

[ryan1288]

Models with that unused function:

• face_detection_yunet/demo.cpp
• object_detection_yolox/demo.cpp
• person_detection_mediapipe/demo.cpp
• 2x in pose_estimation_mediapipe/demo.cpp for each class

Most of them define it in the class, but end up using the following in the constructor:

this->net.setPreferableBackend(this->backendId);
this->net.setPreferableTarget(this->targetId);

In the Python equivalent classes and benchmark.py, it is used for benchmarking. However, currently, they are unused in the C++ versions. Do we plan to keep them for future evaluation?

[fengyuentau]

In the Python equivalent classes and benchmark.py, it is used for benchmarking. However, currently, they are unused in the C++ versions. Do we plan to keep them for future evaluation?

Well, you are right. They are used for benchmark in Python scripts but we don't need them in C++ demos. It's okay to remove them then.

[ryan1288]

@fengyuentau I've removed all such instances of unused setBackendAndTarget from C++ demos. I also reran all the C++ demos to ensure functionality was not affected.

[fengyuentau]

Thank you for your contritbution 👍