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 |
<p>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).</p> |
申请公布号 |
GB2486348(B) |
申请公布日期 |
2014.11.12 |
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;H04N9/67;H04N19/14 |
主分类号 |
H04N5/235 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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