通道概念有人问我,通道到底是干什么的?
我回答,通道其实是选区!
“咦,通道不是存颜色的吗?”
没错,通道是存颜色的,它记录着那种颜色应该出现在图片的什么地方,
PS教程之——通道照片处理
。下面我举个例子。大家可以体会到,通道到底是什么。1.打开图片。(MM!)
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('/Article/UploadFiles/200602/20069236181734.jpg');}" src="/Article/UploadFiles/200602/20069236181734.jpg" nload="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';}" border=0>
2.到通道面板,复制红,绿,蓝通道副本(这样是为了省下后面要不断隐藏新图层的麻烦)。
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('/Article/UploadFiles/200602/20069236181621.jpg');}" src="/Article/UploadFiles/200602/20069236181621.jpg" nload="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';}" border=0>
3.回到图层面板,新建四个图层。图层1填充黑色。
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('/Article/UploadFiles/200602/20069236181371.jpg');}" src="/Article/UploadFiles/200602/20069236181371.jpg" nload="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';}" border=0>
4.载入红通道副本的选区(ctrl+左键点红通道副本,下同),填充纯红(R255,G0,B0)
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('/Article/UploadFiles/200602/20069236181112.jpg');}" src="/Article/UploadFiles/200602/20069236181112.jpg" nload="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';}" border=0>
5.同样方法载入绿通道和蓝通道副本,填充相应的纯绿和纯蓝。
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('/Article/UploadFiles/200602/20069236182833.jpg');}" src="/Article/UploadFiles/200602/20069236182833.jpg" nload="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';}" border=0>
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('/Article/UploadFiles/200602/20069236182140.jpg');}" src="/Article/UploadFiles/200602/20069236182140.jpg" nload="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';}" border=0>
6.对图层4和3选择“屏幕”图层混合模式,效果接近了吧,
电脑资料
《PS教程之——通道照片处理》(https://www.unjs.com)。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('/Article/UploadFiles/200602/20069236182876.jpg');}" src="/Article/UploadFiles/200602/20069236182876.jpg" nload="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';}" border=0>
7.让图层1可见,并且拼合四个图层。
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('/Article/UploadFiles/200602/20069236182436.jpg');}" src="/Article/UploadFiles/200602/20069236182436.jpg" nload="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';}" border=0>
大家可以看看图层1和原图有什么区别吗?
没有区别!对!通道就是选区!
关于Photoshop通道的有大概五种:(1)复合通道这种通道不包含任何信息,实际上它只是同时预览并编辑所有颜色通道的一个快捷方式。它通常被用来在单独编辑完一个或多个颜色通道后使通道面板返回到它的默认状态。对于不同模式下的图象,其通道数量是不一样。在photoshop之中,通道涉及三个模式。RGB模式下有RGB、R、G、B四个通道;CMYK模式下,有CMYK、C、M、Y、K五个通道;Lab模式,有Lab、L、a、b四个通道。
⑵ 颜色通道当你在photoshop中编辑图象时,实际上就是在编辑颜色通道。这些通道把图片分解成一个或多个色彩成分,图象的模式决定了颜色通道的数量,RGB模式有3个颜色通道,CMYK图象有4个颜色通道,灰度图只有一个颜色通道,它们都包含了所有将被打印或显示的颜色信息。
⑶ 专色通道专色通道是一种特殊的颜色通道,它可以使用除了青色、洋红(有人叫品红)、黄色、黑色以外的颜色来绘制图象。因为专色通道一般人用的较少且多与打印相关,所以我们在做图片玩时基本不用。
⑷ Alpha通道(这是我们平时用的最多的一种)
Alpha通道是计算机图形学中的术语,指的是特别的通道。它有时特指透明信息,但通常的意思是“非彩色”通道。可以说我们在photoshop中制作出的各种特殊效果都离不开Alpha通道,它最基本的用处在于保存选取范围,并不会影响图象的显示和印刷效果。
⑸ 单色通道这种通道的产生比较特别,也可以说是非正常的。试一下,如果你在通道面板中随便删除其中一个通道,就会发现所有的通道都变成“黑白”的,原有的彩色通道即使不删除也变成灰度的了。
我们用的多的就是alpha通道和颜色通道了,所以其他的是相关专业人员需要掌握的。大家不必过多的深究。
通过这个例子我想你应该对通道有更好地了解了吧。
关 键 字:photoshop
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