对不起,是我没说清楚,不在相机设置,是在拍摄取景时根据实际情况,采用选择光线比主体花光线较暗处为背景,或取黑色或较深色物体为背景进行拍摄,这样使主体花与背景形成较大的光比差,后期PS时调整色阶的暗部即可使背景与主体对比度更大。
1.原片只压缩尺寸<img src="attachments/dvbbs/2005-8/200583118211031740.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2005-8/200583118211031740.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
2.调整色阶暗部数值后
<img src="attachments/dvbbs/2005-8/200583118224288767.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2005-8/200583118224288767.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />