Photo to Pencil Sketch
Free online photo to pencil sketch tool, uses OpenCV technology to convert photos to sketch effect, supports Pencil, Charcoal, Pen, and Detailed styles, supports customizable parameters and batch processing, all processing is done locally in the browser.
Drag files here or Select Files . Supports WEBP、PNG、JPG、JPEG、BMP、GIF、TIFF、TIF、ICO、APNG、JFIF、XBM、AVIF、HEIC、HEIF、JXL、SVG、PSD、RAW、CR2、NEF、ARW、DNG、EXR、HDR、QOI、TGA、PCX、SGI、RAS、DDS、CUR、EPS、PDF、AI、EMF、WMF、XCF、CR3、RW2、ORF、RAF、SRW、3FR、ERF、MEF、MOS、NRW、PEF、X3F format(s), or press Ctrl+V to paste image
Photo to Sketch Feature
- Multiple sketch styles: Pencil, Charcoal, Pen, and Detailed styles available
- Customizable parameters: Adjust line detail, thickness, shadow, contrast, etc.
- Batch processing: Process multiple images simultaneously
Higher values preserve more details, range: 1-10
Controls the thickness of sketch lines, range: 1-5
Adjust the depth of shadows, higher values create deeper shadows, range: 0-100
Adjust the contrast of the sketch, range: 0-100
Upload Images
Click upload button or drag image files to the upload area, supports batch upload
Select Style and Parameters
Choose sketch style and adjust parameters as needed
Download Sketch Images
After processing, click download button to save sketch images
This tool uses OpenCV image processing technology to convert photos to realistic sketch effects through color dodge blending algorithm and edge detection techniques.
- Pencil sketch uses color dodge blending algorithm to simulate realistic pencil drawing texture
- Charcoal sketch uses morphological gradient to create rough texture and high contrast
- Pen and detailed sketch use different edge detection algorithms for different styles