| 2015/12/30: release libxcam version 0.4.0 |
| * improve performance on OCL pipeline. |
| - design new formats and pipeline to save memory IO. |
| - improve bayer noise reduction with bilateral filter. |
| - support edge enhancement into bayer pipe. |
| - make gpu/cpu working together for 3a-statistics calculation. |
| - move tonemapping kernel from RBG to bayer format. |
| * improve WDR-tonemapping algorithm for quality. |
| - utilize an new adaptive local tone mapping algorithm. |
| - provide the mapping between 16-bit wide dynamic range images to |
| 8-bit images to have “nice looking”. |
| - preserve more information on luminance values of the scene |
| especially for high contrast images. |
| * tonemapping parameters calculated to increase the contrast between |
| high light and low light. |
| - tone mapping regularization parameters are calculated according |
| to the distribution of brightness histogram. |
| - the local adaptive parameter are calculated by weighting the |
| neighbor pixels with a Gaussian blur filter. |
| * add bayer raw video input to simulate camera sensor. |
| |
| 2015/10/19: release libxcam version 0.3.0 |
| * improved OCL pipeline on basic and advanced/extreme pipeline |
| - add new bayer noise-reduction into demosaic |
| - merged yuv-tnr into yuv-pipe kernel |
| - merged TNR-yuv and TNR-rgb together |
| * support WDR(wide dynamic range) feature |
| * add 3a analysis tuner framework for more features tunning, e.g TNR |
| * add hybrid 3a analysis framework |
| - support partial customized 3a algorith, e.g AWB/AE |
| * add smart analysis framework |
| - generate small scaled picture |
| - support customized to analyze small picture and feedback results |
| - support loading user-defined method on smart analysis |
| |
| 2015/07/31: release libxcam version 0.2.1 |
| * improved OCL pipeline on basic 3a image processing |
| - merged bayer kernels with blc, wb, gamma, demosaic and 3a stats. |
| - merged yuv kernerls with rgb2yuv color conversion and macc. |
| - support async framework as option on cl features |
| - support OCL buffer allocation which can choose tiling mode. |
| * support different AIQ versions. |
| * fix capture of dead-loop and sensor format setting. |
| |
| 2015/07/02: release libxcam version 0.2.0 |
| * add gstreamer plugin 'xcamsrc' for Linux media framework support |
| * support loading user-defined 3a algorithm lib dynamically |
| * support more manual 3a features on ISP, e.g multiple-ae-window, ae/awb speed... |
| * add OpenCL pipeline for 3a image processing |
| - bayer format features, black level correction, defect pixel |
| correction, whitebalance, 3a statistics calculation, |
| demosaic, gamma correction, HDR(high dynamic range) |
| - RGBA format features, bilateral NR(noise reduction), simple NR, |
| temporal NR, macc, color correction |
| - YUV format features, temporal NR, edge enhancement, color conversion |
| - support any user-defined 3a algorithms(e.g AIQ) |
| * rich test cases, e.g. test-device-manager, test-cl-image |
| |
| 2015/01/15: Initial xcam version 0.1 |