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CV-CUDA Developer Guide

What is CV-CUDA?

CV-CUDA™ is an open-source, graphics processing unit (GPU)-accelerated library for cloud-scale image processing and computer vision developed jointly by NVIDIA and the ByteDance Applied Machine Learning teams. CV-CUDA helps developers build highly efficient pre- and post-processing pipelines that can improve throughput by more than 10x while lowering cloud computing costs.

CV-CUDA includes:

  • A unified, specialized set of high-performance CV and image processing kernels
  • C, C++, and Python APIs
  • Batching support, with variable shape images
  • Zero-copy interfaces to PyTorch
  • Sample applications: object classification and image segmentation

What Pre- and Post-Processing Operators Are Included?

Pre/Post-Processing Operators Definition
AverageBlur Reduces image noise using an average filter
BilateralFilter Reduces image noise while preserving strong edges
CenterCrop Crops an image at its center
ChannelReorder Shuffles the order of image channels
Composite Composites two images together
Conv2D Convolves an image with a provided kernel
CopyMakeBorder Creates a border around an image
CustomCrop Crops an image with a given region-of-interest
CvtColor Converts an image from one color space to another
DataTypeConvert Converts an image’s data type, with optional scaling
Erase Erases image regions
Flip Flips a 2D image around its axis
GammaContrast Adjusts image contrast
Gaussian Applies a gaussian blur filter to the image
Laplacian Applies a Laplace transform to an image
MedianBlur Reduces an image’s salt-and-pepper noise
Morphology Performs morphological erode and dilate transformations
Normalize Normalizes an image pixel’s range
PadStack Stacks several images into a tensor, with border extension
PillowResize Changes the size and scale of an image using python-pillow algorithm
Reformat Converts a planar image into non-planar and vice versa
Resize Changes the size and scale of an image
Rotate Rotates a 2D array in multiples of 90 degrees
WarpAffine Applies an affine transformation to an image
WarpPerspective Applies a perspective transformation to an image

Where Are the Release Notes?

An awesome product requires excellent support. CV-CUDA release notes can be found here

Where Can I Get Help?

File requests for enhancements and bug reports here.

What Other Computer Vision Products Does NVIDIA Offer?

NVIDIA offers a number of computer vision products

In addition to cloud-scale computer vision and image processing, NVIDIA offers:

  • DALI (Data Loading Library), a portable, holistic framework for accelerated data loading and augmentation in deep learning workflows involving images, videos, and audio data.
  • VPI (Vision Programming Interface), an accelerated computer vision and image processing software library primarily for embedded/edge applications.
  • cuCIM (Compute Unified Device Architecture Clara Image), an open source, accelerated computer vision and image processing library for multidimensional images in biomedical, geospatial, material life science, and remote sensing use cases.
  • NPP (NVIDIA Performance Primitives), an image, signal, and video processing library that accelerates and performs domain-specific functions.

If you want to learn more about what computer vision solutions are available, review the computer vision solutions landing page.


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