Image → Vector Line Art (Validation Phase) for CNC Pen Plotter -- 2

I am building a CNC pen plotter that draws people on paper using a single pen.
Before investing in a full pipeline, I want to run a paid validation phase to test feasibility and output quality.

I am looking for a freelancer who can convert 1–2 images of people into clean, recognisable, CNC-ready vector line drawings.

This is a finite, well-defined task, not open-ended research.

Scope of Work (Validation Phase) -

You will:

- Take 1–2 photographs of people (provided by me)
- Remove or ignore the background
- Generate a vector line drawing that:
(
Is recognisable when drawn with a pen
Uses only strokes / paths
Contains no dots, no shading fills, no raster data
Looks like a human sketch
Is suitable for CNC pen plotting
)

Input Images:
- May be colored
- May include background clutter
- Face portraits preferred for validation
- Good lighting, frontal or semi-frontal

Output Requirements (Strict) -
Format:
- SVG preferred
- OR DXF / vector polylines

Vector Constraints:
- Paths only
- No filled regions
- No pointillism / dot shading
- Continuous strokes preferred
- Stroke order should be logical

CNC Constraints (Important):
- Single pen
- Avoid excessive micro-segments
- Avoid unnecessary stroke fragmentation
- Optimized for physical plotting (not screen art)

Deliverables:
- Final vector file(s)
- Brief explanation of:
- Approach used
- How you came to that approach
- A documentation
- What worked well
- Known limitations

Success Criteria -

This validation is successful if:
- The plotted result is recognisable as the person
- The drawing looks intentional and sketch-like
- The vector runs on a CNC pen plotter without manual fixing
- If successful, this project may extend to a larger paid Phase-2.

Ownership & Usage Rights (Important):
- All code, scripts, pipelines, vector outputs, and related work produced under this project will be fully owned by me.

- This work is considered work made for hire.

- The freelancer may not reuse, resell, publish, or redistribute the work (in part or full) without my explicit written permission.

- I retain the unrestricted right to use, modify, extend, commercialize, or open-source the work in any form.

- Applying to this project implies agreement with these terms.

Skills Required:
- Computer vision / image processing
- Vector graphics (SVG/DXF)
- Python + OpenCV preferred
- Sketch generation / pen plotter experience is a plus

How to Apply -

Please include:
- Relevant past work (vector / sketch preferred)
- Short description of your approach
- Tools/libraries you plan to use
- Applications without relevant examples will be ignored.

Important Note:
This is a validation task, not a full production build.
Clarity and reliability matter more than artistic complexity.
Also please dont be in a hope that this could be done by ChatGPT or any other LLM Models. I have tried and wasted my time. Or you could correct me if I am doing anything wrong. But what I want is a person with slight domain expertise in Computer Vision, Image Processing and Vector Graphics.