README.md

Kiuikit
pip install kiui   •   Documentation

A toolkit for computer vision (especially 3D vision) tasks.

Features:

• Collection of maintained, reusable and trustworthy code snippets.
• Always using lazy import so the code is not slowed down by import kiui.
• Useful CLI tools, such as a GUI mesh renderer.

gui.mp4

"Seahourse3" by seanhepburn is licensed under Creative Commons Attribution.

Install

# released
pip install kiui # install the minimal package
pip install kiui[full] # install optional dependencies

# latest
pip install git+https://github.com/ashawkey/kiuikit.git # only the minimal package

Basic Usage

import kiui

### quick inspection of array-like object
x = torch.tensor(...)
y = np.array(...)

kiui.lo(x)
kiui.lo(x, y) # support multiple objects
kiui.lo(kiui) # or any other object (just print with name)

### io utils
# read image as-is in RGB order
img = kiui.read_image('image.png', mode='float') # mode: float (default), pil, uint8, tensor
# write image
kiui.write_image('image.png', img)

### visualization tools
img_tensor = torch.rand(3, 256, 256) 
# tensor of [3, H, W], [1, H, W], [H, W] / array of [H, W ,3], [H, W, 1], [H, W] in [0, 1]
kiui.vis.plot_image(img)
kiui.vis.plot_image(img_tensor)

### mesh utils
from kiui.mesh import Mesh
mesh = Mesh.load('model.obj')
kiui.lo(mesh.v, mesh.f) # CUDA torch.Tensor suitable for nvdiffrast
mesh.write('new.obj')
mesh.write('new.glb') # support exporting to GLB/GLTF too (texture embedded).

# perceptual loss (from https://github.com/richzhang/PerceptualSimilarity)
from kiui.lpips import LPIPS
lpips = LPIPS(net='vgg').cuda()
loss = lpips(input, target) # [B, 3, H, W] image in [-1, 1]

CLI tools:

# sr (Real-ESRGAN from https://github.com/ai-forever/Real-ESRGAN/tree/main)
python -m kiui.sr --help
python -m kiui.sr image.jpg --scale 2 # save to image_2x.jpg
kisr image.jpg --scale 2 # short cut cmd

# mesh format conversion (only for a single textured mesh in obj/glb)
python -m kiui.cli.convert input.obj output.glb
kico input.obj output.glb # short cut cmd
kico mesh_folder video_folder --in_fmt .glb --out_fmt .mp4 # render all glb meshes into rotating videos

# aesthetic predictor v2 (https://github.com/christophschuhmann/improved-aesthetic-predictor)
python -m kiui.cli.aes --help

# compare content of two directories
python -m kiui.cli.dircmp <dir1> <dir2>

# lock requirements.txt package versions based on current environment
python -m kiui.cli.lock_version <requirements.txt>

GUI tools:

# open a GUI to render a mesh (extra dep: nvdiffrast)
python -m kiui.render --help
python -m kiui.render mesh.obj
python -m kiui.render mesh.glb --pbr # render with PBR (metallic + roughness)
python -m kiui.render mesh.obj --save_video out.mp4 --wogui # save 360 degree rotating video
kire --help # short cut cmd

# open a GUI to render and edit pose (openpose convention, controlnet compatible)
python -m kiui.poser --help
python -m kiui.poser --load 3head # load preset 3 headed skeleton