曝光值

将图像的直方图划分成不同的区域，将这些区域的图像熵经过加权计算，得到该图像的曝光值与理想曝光值之间的差。

The image histogram is divided into different regions . These weighted entropy is balance between the image exposure value and the ideal exposure value .

摄影条件主要取决于管电压和曝光值，管电压与种子厚度有关，曝光值则依管电压、焦片距和感光材料不同而异；

The major photographic conditions are tube voltage , which relates to the thickness of seed and exposure value , which based on the tube voltage , focal distance and sensitive material .

自动DX型设置与手动过量胶卷速度设置间的曝光值差用+和-表示。

The exposure difference between the automatic DX-coded setting and the manual override film speed setting is indicated by the " + " and " - " .

本文介绍了以MCS－51系列单片机为核心的一种照相机性能指标的微机检测系统，它既可单独也可同时检测曝光值偏差△EV、曝光时间T和光圈数F等指标。

The paper describes a microcomputer examining system which is used to examine the property of a camera . The system can examine some parameters such as the variation of the exposure △ EV , the exposure time T and the aperture F.

这个系统仅测定中心点曝光值（微棱镜区域内）

This system only measures the central spot ( inside the microprism area ) .

如在自动操作状态，曝光值被锁定时，又改变了光圈，相机将调整快门速度已对应被锁定的曝光值。

If the aperture is changed while an exposure value is locked in Auto operation , the camera will adjust the shutter speed to correspond to the exposure value that is locked .

工业x射线机曝光参数值最佳选择

The Best Choice of 4 Exposure Coefficients for Industrial X-ray Radiography

曝光补偿值将在取景器中显示。

The exposure indicator is displayed in the viewfinder display .

曝光补偿值也将在液晶屏幕上显示。

The exposure compensation value is displayed on the LCD panel also .

如果您调整一个前曝光补偿值时，曝光指示灯江流在取景窗显示上。

If you are adjusting a previous exposure compensation value , the exposure indicator will remain in the viewfinder display .

按压向上向下按钮，调准曝光补偿值。除法定补偿外，政府也会按一套特惠补偿方法，发放特惠补偿。

Press the updown buttons to set the desired exposure compensation value . Apart from statutory compensation , there is a system of ex gratia payments .

电离室自动曝光密度补偿值的合理选择

Reasonable selection of automatic exposure density compensation of iono-chamber

通过监测选通脉冲的传输过程，发现脉冲宽度展宽是造成曝光时间测量值比理论值小的主要原因，该研究结果可为提高相机的时间分辨率提供重要指导。

It is found that the fact of measured exposure time smaller than theoretical value is due to the broadened pulse width , by monitoring the gating pulse transferring through the micro-strip lines .

拍摄时曝光量是锁定值，拍完照后，自动曝光锁定将取消，AEL字样将从液晶屏上消失。

The picture is taken with the locked exposure value . When the picture is taken , AE lock will be canceled and the " AEL " mark will disappear .

由于在广角情况下，光线从不同角度射入，曝光表显示的是中间范围的曝光值。

Since the light varies throughout most wide angle scenes , take meter readings against an area that represents the mid-range of exposure in your scene .

拍摄时，如果一直按住预景深自动曝光锁定按钮，相机就能以锁定的曝光值重复拍摄。

If the preview AE lock button is kept pressed while shooting , it is possible to shoot repeatedly with the locked exposure value .

曝光指示灯将显示所选的曝光补偿值。闪光曝光，可用小光圈档，用一张白纸放在原稿上面或用闪光灯曝光。

The exposure indicator displays the selected exposure compensation value . This exposure is made with a small F-stop to a sheet of white paper placed over the original , or to the rays from a flash - lamp .

当包围式曝光模式补偿或自动曝光锁定相结合时，曝光范围将分别依据所选的曝光补偿值或锁定值。

When the auto bracketing mode is combined with exposure compensation or AE lock , the exposure range value or the locked exposure value respectively .

综合考虑曝光时间、光圈大小、景深等对采集图像的影响，通过计算整体清晰度，选择最佳曝光值组合；

Considering the effect of exposure time , aperture size and the depth of field to image collection synthetically , the holistic definition of image is computed to choice the best exposure combination .