公开(公告)号：US20060087581A1

公开(公告)日：2006-04-27

申请号：US10969966

申请日：2004-10-22

Applicant: Wen-Kuo Lin

Inventor： Wen-Kuo Lin

IPC: H04N5/238 ,  G03B7/08 ,  G03B7/00

CPC classification number: H04N5/2351 ,  G03B7/08 ,  H04N5/2352 ,  H04N5/2356

Abstract: The invention describes an exposure control method. A target luminance value is set. A plurality of range and step parameters is set. An exposure value (EV) is set and an exposure value adjustment index is obtained by an adjustment based on the range and step. A new target luminance value is obtained from a table according to an adjustment factor. An measured luminance value is measured according to the exposure setting. A modified exposure value is calculated by an exposure value (EV) modification process. Thereby, basic arithmetic and logical operations, such as addition, subtraction, multiplication and division are be used in place of complicated exposure calculation using a logarithmic operation in the conventional image processor and thus problems of power consumption and execution speed are resolved.

Abstract translation: 本发明描述了一种曝光控制方法。 设定目标亮度值。 设置多个范围和步骤参数。 通过基于范围和步骤的调整，设定曝光值（EV）并获得曝光值调整指标。 根据调整因子从表中获得新的目标亮度值。 根据曝光设置测量测得的亮度值。 通过曝光值（EV）修改处理计算修改曝光值。 因此，可以使用诸如加法，减法，乘法和除法之类的基本算术和逻辑运算来代替常规图像处理器中的对数运算的复杂曝光计算，从而解决功耗和执行速度的问题。

公开(公告)号：US20050201640A1

公开(公告)日：2005-09-15

申请号：US10708551

申请日：2004-03-10

Applicant: Wen-Kuo Lin

Inventor： Wen-Kuo Lin

IPC: G06K9/00

CPC classification number: G06T3/40

Abstract: A method for scaling a digital picture to generate a plurality of different size pictures includes following steps: (a) providing a scaling engine; (b) loading a section of the digital picture to the scaling engine; and (c) scaling the section loaded in step (b) to generate digital images of different sizes.

Abstract translation: 用于缩放数字图像以生成多个不同尺寸的图像的方法包括以下步骤：（a）提供缩放引擎; （b）将数字图像的一部分加载到缩放引擎; 和（c）缩放在步骤（b）中加载的部分以产生不同尺寸的数字图像。