vito 0.3.2

Lightweight utility package for common computer vision tasks.

vito - Vision Tools

Python utilities for common computer vision tasks. The goal of this package is to provide a lightweight package helping you with standard/recurring image manipulation tasks.

Dependencies

• numpy
• Pillow

Examples

• Pseudocoloring:

from vito import imutils
from vito import imvis

# Load a single-channel image
peaks = imutils.imread('peaks.png', mode='L')
# Colorize it
colorized = imvis.pseudocolor(peaks, limits=None, color_map=colormaps.colormap_parula_rgb)
imvis.imshow(colorized)

• Optical flow:

from vito import flow
from vito import imvis

# Load optical flow file
flow_uv = flow.floread('color_wheel.flo')
# Colorize it
colorized = flow.colorize_flow(flow_uv)
imvis.imshow(colorized)

• Depth image stored as 16-bit PNG:

from vito import imread
from vito import imvis

# Load 16-bit depth (will be of type np.int32)
depth = imutils.imread('depth.png')
# Colorize it
colorized = imvis.pseudocolor(depth, limits=None, color_map=colormaps.colormap_turbo_rgb)
imvis.imshow(colorized)

Changelog

• 0.3.2
  • Rename colorization for optical flow.
• 0.3.1
  • Fix colormaps.by_name() for grayscale.
• 0.3.0
  • apply_on_bboxes() now supports optional kwargs to be passed on to the user-defined function handle.
  • Changed imread()'s default mode parameter to optional kwargs which are passed on to Pillow.
  • Raising error for non-existing files in imread()
  • Added colormaps.by_name() functionality.
  • Fixed bounding box clipping off-by-one issue.
  • Added imutils tests ensuring proper data types.
• 0.2.0
  • Optical flow (Middlebury .flo format) I/O and visualization.
  • Support saving images.
  • Colorization to visualize tracking results.
• 0.1.1
  • Changed supported python versions for legacy tests.
• 0.1.0
  • First actually useful release.
  • Contains most of the functionality of pvt (a library I developed throughout my studies).
    • cam_projections - projective geometry, lens distortion/rectification (Plumb Bob model), etc.
    • colormaps - colormap definitions for visualization (jet, parula, magma, viridis, etc.)
    • imutils - image loading, conversion, RoI handling (e.g. apply functions on several patches of an image).
    • imvis - visualization helpers, e.g. pseudocoloring or overlaying images.
    • pyutils - common python functions (timing code, string manipulation, list sorting/search, etc.)
• 0.0.1
  • Initial public release.
  • Contains common python/language and camera projection utils.

TODO List

• anonymization utils
• augmentation