发明名称 |
Method and system for transforming a digital image from a low dynamic range (LDR) image to a high dynamic range (HDR) image |
摘要 |
The invention provides a method for transforming an image from a Low Dynamic Range (LDR) image obtained with a given camera to a High Dynamic Range (HDR) image, the method comprising: - obtaining the exposure -pixel response curve (21) for said given camera - converting the LDR image to HSB color space arrays (22), said HSB color space arrays including a Hue array, a Saturation array and a Brigthness array; and - determining a Radiance array (23, 24) by inverse mapping each pixel in said Brightness array using the inverse of the exposure -pixel response curve (f-1). |
申请公布号 |
GB2486348(A) |
申请公布日期 |
2012.06.13 |
申请号 |
GB20110021761 |
申请日期 |
2010.07.12 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
AHMED EL-MAHDY;HISHAM EL-SHISHINY |
分类号 |
H04N5/235;H04N5/20;H04N7/26;H04N9/67 |
主分类号 |
H04N5/235 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|