# CUVI Release Notes

From CUVI Wiki

## Version 1.2.1

- Release Date: April 17, 2013
- Requirements:
- New Features/Enchancements

- Framework Enhancements
- C Interface has been discontinued.
- All functions in C++ interface now take CuviImage references instead of pointers.
- Added image I/O. CuviImage can now be loaded and saved directly on the disk without the requirement of a host.
- Added namespace "device" which contains device management functions:
- getDeviceCount
- getCurrentDevice
- setCurrentDevice(const Cuvi32s id);
- syncCurrentDevice()
- resetCurrentDevice()
- getDeviceProperties(const int deviceID, CuviDeviceProperties& props);

- Features removal:
- eigenVals
- eigenValsVecs
- meanStdDev
- Color2Gray (added as an overload of rgb2gray)

## Version 1.2

- Release Date: May 11, 2012
- Requirements:
- New Features
- CountInRange - Counts the number of pixels within the given intensity range
- Sum - Computes the sum of pixel values of each channel in an image
- Max - Computes the maximum pixel value of each channel in an image
- Min - Computes the minimum pixel value of each channel in an image
- MinMax - Computes the minimum and maximum pixel value of each channel in an image
- Mean - Computes the mean of each channel of the input image
- MeanStdDev - Computes the mean and standard deviation of each channel in an image
- EigenValsVecs - Calculates eigen values and eigen vectors at each pixel in an image
- Flip - Mirrors an image about a horizontal or vertical axis, or both
- ImageGradients - Calculates X and Y gradients of image
- MinEigenVal - Calculates the minimum eigen value at each pixel in an image
- Rotate - Rotates an image with the origin (0,0) or center
- Transpose - Takes Transpose of the image

- Framework Enhancements
- Instead of a single function for all color operations and one for arithmetic operations, the new build contains individual functions like RGB2YUV and Add to improve usability
- The functions 'split' and 'merge' are renamed to ChannelSplit and ChannelMerge
- The function 'bayerToRGB' is renamed to Demosaic
- The function 'imFilter' is renamed to ImageFilter and its input argument have been simplified
- The function 'dwt' and 'idwt' have been renamed to haarFwd and haarInv respectively
- CUVI now includes a C++ Timer class that accurately profiles your application timing
- CuviMat is introduced which is C counterpart of the class CuviImage

- Bug Fixes
- ImageFilter bug fixed

*Release notes for previous versions is not available*