Udemy PS Chris Barin 8.1-8.11 & 76-86
76.00-8.1
Introduction More About Selections
更多选择
开始探索更多选择，探索套索工具，钢笔工具，把人从背景中圈选出来，选择的技巧和诀窍以及关键设计，进一步深入，你会选择新技术，这次技能为下一步技能做准备的。依赖训练的经验拾级而上的。we'll remove various things from photos. we'll also clip out a person from background. you'll also pick up some tips about selections and how you can improve them with a few tricks and settings.
77.04-8.2
Use Lasso Tools
用套索工具
有些选择比较困难，热键L调取三个选择工具。常规套索工具也是钢笔工具一种，在屏幕绘制选择，核对勾选保持平滑。羽化效果柔化边缘，用同样的变形关键，可以用于框选工具，Shift选区相加，光标旁边加号。Alt移除部分选区，光标旁减号。Shift+Alt组合选区交集。工具都是相互关联的。用框选工具创建的矩形选区，然后用套索工具移除部分选区，魔术棒移除部分套索选区进一步完善。套索工具用于从画布快速的选区，可以用于调整其它选区，当你想加入或移除大部分选区的时候用。当到多边形套索工具选区时，和正常套索工具特征相似，抗曲折和羽化功能都存在，依赖点击选区相对精准些。可以在任意点点击，如果你选区有弧度曲线，这种点击选区方案并不理想。the hotkey is L you have three of them in total, the regular lasso tool works sort of pencil, you can grab bit then you can draw anywhere on canvas to make selection. the anti aliasing should be turned on. you also have feather ption that creates soft edges. you can use the same modifier keys that you used for marquee tool, shift adds to selection, plus symbol next to cursor. Alt removes parts of selection. Shift+Alt combined will give you intersection. All those tools interwined with each other. you create a rectangular section with marquee tool, then you jump in with a lasso tool remove parts of it. you use magic wands, further improve your selection by removing a big chunk with lasso tool. polygonal tool has better precision because it relies on clicks. we only have straight lines, if your object has any curves, this is not ideal tool for job.
针对多边形套索和多边形工具容易混淆点，多边形套索是选区工具，多边形工具是形状工具。磁性套索工具，顶部任务条特征类似，都是控制工具行为的，点击，鼠标悬空停在边缘，并没有继续点击，创建原始锚定点，现在移动鼠标，PS自动加入其它锚定点，基于顶部我设定的频率数据来添加。频率越高添加锚定点越多，如果形状复杂，锚定点越多，选区效果越好。don't confuse polygonal lasso with polygon tool. there're two completely different things. polygon create shapes, polygonal lasso creates selection. magnetic lasso tool immediately we get more featurers at the top and those controls tools behavior. i clicke once for initial point, now i'm moving mouse, PS is automatically adding anchor points based on frequency i set up top, the higher i raise it, the more anchor points. i'm going to get if the shape is complicated, move anchor points will result in a better selection.
如果选区选择搞坏了，不愿意重来如何处理，按删除键，删除掉最后锚定点，继续纠正线，需要回到原始点，关闭选区。观察光标点变化。如果图像被洗刷掉了，可以继续增加对照度。选区最小宽度，在选项栏设置10像素。这就是磁性套索工具。if i somehow messed things up and i don't want to start over, i can press backspace key, this will delete your last anchor point, you can continue on correct line, back around to original point and close it off. you'll see cursor will change its appearance. you may need to ramp up contrast. the width the area where PS tooks for edge, it's usually a good idea to leave it at around 10 pixels, that's magnetic lasso tool.
78.05-8.3
Pen Tool Overview
钢笔工具概述
探讨选区目标的钢笔工具的强大多功能作用。热键P调取钢笔工具，左上角下拉菜单选择路径。点击创建锚定点，这是黑点，再次点击，就相连了。如果点击拖拽，调节曲线和圆角，这是常用的参数。再次反方向点击，钢笔工具产生的弧度体现延续性，并没有嘎然转向。如果不用热键，可以点击钢笔工具徽标，弹出的菜单最后一个转换点选项，功能是任意锚定点都可以点击转化。比如我们用钢笔工具路径模式，对选择为目标这模式管用的。如果想管理路径，我右侧固定该特殊面板，调取方法是，从主菜单窗口-路径，可以看到右侧面板缩略图的变化。we'll talk about the pen tool for selection purposes, it's a powerful and versatile option for project. grab pen tool through hotkey P. the setting is this one in top left, use the dropdown, you want to set to path. you click once to create an anchor point, it's this black dot here, you click again, there're connected. if you click and drag, you'll get a curve, which is much more useful in your day to day work. you'll adjust its roundness. if you click it again, but in an opposite direction, and without holding down your mouse, you'll get curve, pen tool wants to continue particular flow. you can click and hold on pentool's icon, the last one from fly out menu, it's convert point tool. any anchor point and click on will change. we're using pen tool in path mode, this is useful for selection purposes. if you want to manage your paths, you have a special panel for it. i have it docked here. go to window paths, you can see thumbnail changes.
如果点击回车等于选择工作路径，得到最后一个路径，避免工作过程丢失，可以双击该区域，输入名字，保存在PSD内。回到原始的锚定点，停留在锚定点上，光标旁圆圈，关闭路径后，现在开始创建选区。创建选区的方案主要两个，一个右下面板选择徽标，点击第三个路径徽标即可创建，另一个我偏爱方案右键菜单选择。弹出对话框羽化半径，涉及不到这问题，主要确定勾选了保持平滑。在选项栏，默认勾选保持平滑。if you hit enter then you click on work path, you're going to get the latest one, to preventing losing your work. you can save path by double clicking in this region, input any name it's going to be saved inside PSD. you go back to the initial anchor point, this was my first one, if i hover over it, i'm getting a circle next to cursor, that means i'm about to close this path, now we can create selection. there're two main choices to create selection from path, to click on 3rd icon at bottom of path panel. my preferred method is to right click from the list of press make selection. if ask the feather radius, that's not the calse, i'll always keeps anti-aliasing checked because this prevents jagged edges.
在出现的路径，光标移动道被选择的路径，不需要点击，出现很多锚定点，看光标旁出现变化，出现加号，代表增加锚定点。如果鼠标停留在已经存在的锚定点上方，光标旁出现加号代表可以移除，路径仍旧是闭合状态，不会移除某段路径，只会移除路径上某些锚定点。回到原点关闭路径。when you hover over a selected path, you can add as many anchor points as you want on it, my cursor changes, it gets a plus symbol, that means i'm about to add a new anchor point, if you hover over an existing point, you'll get this minus symbol, which means you can remove it. your path will remain closed, as this doesn't remove the segment instead of remove point. once you've closed off path by going back to origin point.
79.04-8.4
Use Direct Path Selection Tools
用直接路径选择工具
当处理钢笔工具时，设计直接选择工具和路径选择工具。路径选择工具黑箭头，目标是展示路径的。P调取钢笔工具，光标旁星号，创建新路径。如果创建好的路径需要进一步编辑，就涉及到路径选择工具。选择局部路径就可以，因为该工具并不针对路径上的锚定点。不管如何框选获得整个路径，当去选择时，尽量用黑箭头，点击图层面板，展示轮廓，或者从画布上获取。when you're dealing with pen tool. direct selection tool, path selection tool. the path selection toll is the black arrow, its only purpose is to show your path. if we grab pen tool, you'll notice asterisk symbol next to cursor, this means we're about to create a new path. i want to further edit the existing tool comes into play. just cover a tiny bit is enough, that's because this tool doesn't target individual anchor points. no matter what you click on how much you marquee on it, you'll get the entire path, when you want to deselect. hit enter. notice the path panel. you no longer have it selected there. so even though you may try to use your black arrow, it's not going to work you need to click layer panel and reveal its outline. you can grab it from canvas.
切换到钢笔工具，加入或者移除锚定点，调节曲率的切线直线。被选中可调节的点实心黑色，没被选中点白色。所以白箭头选中锚定点用的。可以绘制白色背景框内，这段区域内锚定点被选中了。白箭头选锚定点工具和黑箭头选路径轮廓工具用Shift+A来切换。按回车去选择，或直接点击面板的路径。i can switch back to pen tool, and i can add anchor points or i can remove them or further manipulate. what's up with additional lines that show up when you create a curve. these are called control handles, and through them you can adjust curvature. you have to first select individual anchor points, we've established black arrow, gets the whole path, no matter where you click, that leaves job up to white arrow, so direct selection tool helps you select individual anchor points from a path, hotkey A you can cycle between them. i'll deselect it with enter key or click on path from panel. you see it outline now with white arrow, i'll draw a tiny box in this region, only this point selected compare it with all others are hollow this is filled with black.
选中后出现手柄，上调曲率反方向的延伸。这就是项目中，如果路径不够理想，按Ctrl开始调节曲率切线的手柄，观察曲率平滑度，锚定点数量越少，路径越平滑。最后钢笔工具从草图介绍的，如果你目标点下一点，尝试下直接拖过去，路径并不理想，所以顺着曲率的趋势移动过去。you click on it, you can move it about as you move it upwards, the other hand is going to move in the opposite direction. here's how this would go on a real project. you click one, this isn't way you wanted it, you hold control and you start fine tuning things. i can fiddle around with handles to adjust curvature while shift holding control. i can reposition any anchor point this entails new changes. i'll grab handles again what you look for in parts in smoothness. the less anchor points, the better your path is going to look. if you want to go towards direction hold down Alt and grab this handle, how if you click in that area, this is going to be more in line with your goals.
80.05-8.5
Activity Pen Tool Selections
钢笔工具的选择
挑选三个进行分析，剩下的接力完成训练。目前需要直线，按住Shift创建完美直线，纵然在形状内部，点击中点，对称的另一侧也重复该步骤。靠近内部也好过把背景裁剪到边里。we have lots of shapes in this PSD, i'll do a couple, and i'll pass the torch to you. if i'll hold Shift, this will create a perfect line, even though i'll click somewhere indise shape, as you can see, no problems with it, click on middle point, now repeat process on the other side. i'd rather you have it placed inwards, this means wee lose one or two pixels from shape. this is much better than havign a white stroke all around it from background.
第二个是黄色和橙色倒L图案，从左侧顶部单独点击，第一个难点是，直线变成椭圆头，这时候顺着椭圆弧度进行选择，而不是直接跨过去，原因是顺着椭圆弧度可以多个锚定中间点切线调节。第二个难点是黄色橙色中间交叉，都是直线条，这时候采用Alt减去中间点部位。we can start from the top left with a single click, now move down and click somewhere around region, before object starts to change its shape, we aim for another anchor point near this ara, because around here we can find its middle point, if we drag directly on the other side that would require a lot of fiddling. so drag towards right, we have pretty far out to match curvature. use Ctrl drag right handle inwards. on the next line it should be perfect straight, we click without any modifier key which require a bit of fine tuning, instead i use Alt and i'll click on anchor point, i'll get a perfect line. i don't afraid of changing anchor point placement, i'll circle back and look for symbol so i can close off my path.
第三个图案是类似甜甜圈，从颜色交叉点部分开始圈选，椰树逐步点调节曲率，考核重点是第一，重心偏内的把控。第二，针对不小心多选的锚定点的处理，按Ctrl键来去掉不想要的锚定点，第二个难点是需要近观调节，迷失了，可以再远观退出，近观远观的调节看准。start from other part from this place where two colors intersect, click once and now move mouse over to imaginary middle point of shape, click and drag towards right. i'm going to require concentration, we can handle it. you might need to further adjust their handles with Control key, you can remove unwanted white pixels. we can't rely on convert point tool, because everything needs to be one continuous smooth line, just to be sure everything is fine, is to control click each anchor point and adjust handles.
81.03-8.6
Quick Mask Mode
快速蒙版模式
本节需要处理的大面积的屋子和顶部小面积天空，屋顶和天空都是蓝色，很容易选不中蓝色的屋顶，误多选蓝色的天空，针对该问题如何处理。如果是我我首选快速蒙版模式，但是大部分人的选择是快速选择工具，我们先看看快速选择工具有什么不好。quick mask is a particular helpful way to check quality of selection and further modifying them. we have building, it's top edge is blue, our sky is blue as well, so that might thrown off selection tools. that's bound to be a problem. i'm going to use it to demostrate usefulness of quick mask mode. in this case, i'd rather use one of lassor or better yet pen tool. i'll go with a suppar choice for job quick selection tool.
用刷子涂抹房子，越是接近顶部蓝屋顶蓝天空的时候，越是避免错误选择，用Q热键快速蒙版模式，如果图层用红色高亮，还是容易不选择蓝色屋顶，选择红色的天空。说明这就不是颜色相似的问题了。i paint over buildings like so. you see it doesn pretty good job in bottom of middle area. as i go towards top. things aren't hot because i'm afraid to go over region because i'll get sky in my selection, which is exactly what i'm trying to avoid. this blue on blue isn't very helpful. our layer now is highlighted in red, even more striking is this red overly that covers our sky.
所以我们引入快速蒙版模式，给到视觉化呈现，房子改选的没有选部分，天空不该选但是被误选的部分。关注问题区域，用B热键调取前景白刷，涂抹红色区域，漏选的红色屋顶区域，如果需要调节刷子硬度。最好方式钢笔工具勾选，而且该区域不需要调节曲率，快速蒙版模式允许掺入钢笔工具选择。用刷子涂抹内部或Alt+Delete填充选区颜色。quick mask mode give you a better visual representation of what selected. in this case the building which is unaffected and what's not selected sky that's covered in red. i can zoom in and focus on problem areas. besides showcasing all selection issues. i also get a great way of solvign them. grab B brush tool with white as foreground color, i can start to paint over these red areas, red means it's not selected, and i want entire building selected. a much better approach would be the following get the pent tool and quickly click on a few times. we don't need any curves for specific region. close it off and right click make a selection. that's allowed in quick mask mode. exit quick mask mode either through hotkey Q or by pressing on icon in tool box,
需要指出的是方法上可以全选后，把小面积的天空用Alt移除选择。另外，多边形选择和套索选择工具远远好过快速选择模式，所以在具体任务具体分析的时候选对工具。i could have used Alt to remove parts of sky if they're been selected by mistake, but polygonal lasso or pen tool would have been much better options. if that wan't the case and i want to get rid of sky , i would have approached it the other way around. work smarter not harder.
82.04-8.7
Select A Color In Photo
选择照片中的颜色
本节解决的问题如何从照片中选择粉花，如何避免一个个粉花点击费力效果欠佳的过程。做选择的目标位了给编辑明确定位的。而魔术棒或快速选择工具需要很多次点击才可以选中花的细节。如何加速进度呢，顶部菜单选择-颜色范围。下拉菜单中样本选择颜色，我们尝试下其他选择怎么不好，来证明为什么推荐样本选择颜色。select a color from a difficult image with the least amount of work possible with allow you to cut down time it takes. to select all flowers from photos, you'd first have to start with a selection so you'd first have to start with a selection so you'd pinpoint your edits, magic wand or quick selection tool might do the job but that require a lot of clicking because this photo has so many details. go to menu and click on select, now choose a color range.
首先尝试红色样本，可以看到左上角很多天空的颜色都被选进来了，但是我们目标选择花朵，红色样本不合适。更换高亮的样本，测试的方案是鼠标到花朵上，光标变成拾色器的样子，移动到天空，可以看到预览框依旧显示天空，也证明高亮模式并非最佳模式。first dropdown is currently, set at sample colors, but i can change it to reds, i the small preview window, everything that is white will be selected, we can see red option isn't doing a fantastic job. this would give us more of these flowers, but if you look at top left corner, you can see we're also gettign a bit of sky. shift mode to the color, this creates a selection based on what colors we grab from canvas. you can see that as i move cursor over my image. it turns into eyedropper tool. this means i'm about to sample this color. let's click over the sky so you can see how this works. this preview shows me now i have now selected the sky, but it's a tiny window that makes it hard to see.
接下来是对话框底部的灰色天空，选择后可以点击花朵部分调节选区，在保存按钮下面，有三种拾色器，被选中的部分是目前应用的，剩下拾色器一个加色彩如同Shift热键作用，另一个拾色器减色彩如同Alt热键的作用。了解完对话框，操作方式，下面选择灰色尺度，上面选择颜色样本，按住Shift，点击花朵，可以看到预览框中花朵逐渐增多。we'll focus is bottom area and click on this dropdown, choose gray scale, and this will now show you the preview directly on the canvas. click again somewhere over the flow, this adjust your selection. underneath the save button, we have three tools, the eyedropper, which i've used so far, and two other eyedropper tools through which you can add or remove parts of selection, i prefer to use it hotkeys shfit to add, alt to remove. it's unlikely you'll get all these flowers with one click. that means i'll have to slowly build up selection by clicking several times. while holing down Shift key, let's do that now by change preview to gray scale yet again, click on any flower, then repeat the process several times while using the shift key. notice how my selection is starting to grow.
谈谈对话框的模糊的功能，调大到200可以看到像是给花朵注入生命，这样的意义，看清楚多选的枝叶，用Alt热键去除多选的结构。在勾选染色花束后，范围滑块才被激活，小范围局限于花朵，大范围广到枝叶。这样可以调节选区的样本范围。to further refine it, this fuzziness slider is a life saver, turn it up to about 150, you'll see how you get a much clearer image of what's going on. once you get hang of it, the whole process will require significantly. less effort than selecting each flower individually with any other selection tool. this is way too much ,but it helps you identify those areas that need to be excluded, hold Alt and start clicking on this guy constantly swtich between adding to selection with shift and removing parts of it with help of Alt key. if you select localized color clusters. you'll get access to this range feature, use it to control what's going to be included in the selection based on the area where you click. the more you increase it, the larger of area ps will look at.
最后是下载保存的格式为.AXT格式，打开后，看到蚂蚁行军标记出的选区。毕竟好的选区才是编辑的前提。接下来可以调取曲线调节图层，进行调节，展示选区完美的重要性。what's great is that we can save our work and we can come back to it another time. so let me click load, this will prompt you to select a dot AXT file. i double click it, now i have it available in ps. once you see marching ants, you can see it did a great job far better than quick selection tool could offer.
83.06-8.8
Activity Remove Background
移除背景
本节处理的任务是橄榄球的草地背景换成梦幻天空的背景。分为四步部，第一，移除背景；第二，添加新实色图层；第三，创建真实的阴影；第四，创建贴图效果；one you remove the background, two, add a new one through an adjustment layer, three, create a realistic shadow, four, create a vignette effect.
首先第一步去除背景前提创建球体的选区，选择工具个人优选钢笔工具，但是鉴于大多数人倾向选择快速选择工具，快速选择工具球底部，选择不少的草地，按住Alt移除不想要的草地，但是效果差强人意，不过球体弧度被选择算是合格的。被选取球体放到透明蒙版上，避免不可逆性编辑；热键B调取黑刷，特写贴近球体边缘涂抹。该效率证明不如钢笔工具，换工具，热键P钢笔工具三下圈选出球体，好处可以确保平滑的表面和曲率。热键Ctrl可以进一步调节边缘。右键做出选择，弹出的对话框羽化0像素，确保保持平滑。黑刷移除不需要的边缘。Ctrl/Alt+Delete填充黑色。the pen tool would be my first choice, but since a lot of people use quick selection tool. i'll grab that instead. i can hold Alt to remove those unwanted spots, but it's still not going in right direciton. nevertheless, the bulk of work is done. here's the footbal on a transparent background, not quite a perfect cut out, if you want the alternative, grab B black brush, starting painting, go over each area and slowly get closer to bulls ege. this won't be fast, nor give you great result. let's start from the left side with pen tool, i want to get the entire bottom half with just three clicks. this will ensure a perfectly smooth surface, i'll drag a lot towards the right side, so i can get a nice curve. you may need to use control to further adjust it, in case it's not going well at all. use ctrl z and retrace steps. leave the feather radius set zero pixles. make sure anti alias check. paint with a black brush to fill with black.
第二部添加实色，用80AFFF，放置图层下面如果背景移除有任何问题，实色都会暴露出来。那种情况回炉处理。let's creat a background for it with the help of an adjustment layer solid color, will fill our canvas with any color of our liking. note that adjustment layers in general, don't contain any actual pixels. they only modifying existing ones. click here and go all the way to the top, this is what you're looking for solid color, which is one of the exceptions alongside gradient and pattern. let's say 80 AFFFF place it underneath our layer. this solid color will expose any problems if that's the case.
第三部创建阴影，工具栏选择椭圆形工具，阴影比球体小，放置球体下面，水瓶居中，阴影图层转化为智能图层，可以用过滤-模糊-高斯模糊-50像素，热键G梯度工具，调取默认前后景黑白色，选项栏的梯度过滤有几种选择方案，我们选择放射性梯度。因为需要平滑过渡的效果。阴影如果不按Shift做不到不偏不倚，偏投阴影或太小的阴影显得不真实。let's create a shadow, so it won't see like its floating in space, grab ellipse tool from tool bar, even though we haven't covered it in depth so far, click and drag to create a shape like this, so fairly squish at about 2/3 of the footballs length, position it underneath the ball and center horizontally. this is all set click your shape and convert it to a smart object, thsi si so we can adjust upcoming filter. apply a blur, specifically a gaussian blur. use tope menur for that. we're going to get the gradient tool, with hotkey G, you're looking for this preview here, the gradient top has multiple ways of working. we want a radial gradient. hold Shift you'll drag in a perfectly straight line you might end up with centered shadow.
最后一步贴图效果，曲线调节图层，属性面板拖拽曲线中部，让色彩变暗，调节刷子硬度50%，用2000的大刷子，移除球体周围的效果。an adjustment there at the top of layer stack. choose curvers from properties panel, drag this one down somewhere near the middle, this darken everything. let's say hardness somewhere around 50%, size over 2000. click on ball and brush in circular pattern.
84.06-8.9
Select And Mask Hair
扣头发丝
模特换背景，模特的头发丝如何不含上一张背景的杂色，又可以完美的保留头发卷曲部分呢，解决方案先暴露需要处理的点，然后处理。认识下PS老版本的精修边界，新版本的选择和蒙版的功能吧。任意一个选择工具都可以调取选择栏的选择蒙版的功能。洁面变化了，出现了左侧工具栏，五个工具，分别是快速选择工具，精修工具，套索工具和磁性工具。接下来重点介绍右侧功能特征的作用和意义。remove the model background and replace it with this one, all while maintaining the detail in model's hair. so i use quick selection tool to roughly select girl, if you focus on hair, you can see there're few strands left out. the goal is to get them back with minimal efforts. PS give us completely new workspace called select and mask. that helps us improve our selection. in previous release of ps was called refine edges. if you have this button availabe in option bar, grab any selection tool that will give you this feature. alternative you can use hote key Alt Ctrl R once i click it, my workspace changes here, on the left side, you see we only five tools. quick selection tool, refine edge brush, lasso tool ,magnetic tool, hand zoom tool. the right side is packed full of settings and features. some of the more important than others in thsi case.
首先是背景图的切换暴露需要处理头发边缘残留图层。设置不透明度，勾选智能半径，半径滑块帮助拓展选区的用处，避免遗漏的细节。比如半径滑块调大最大值250像素，可以看到默认的暴露头发边缘残留前背景图。如果关闭，可能导致头发边缘精致的卷曲丢失掉。结论是智能半径应该勾选。what's great is that you can adjust opacity of viewing mode so that you can get a better grasp of what's going on this. that's because now is the time to correct any potential problems. i'll use overlay as my viewing mode because this red showcases all issues. if i crank radius to its maximum value 250 pixles we can see it did a decent job at eliminating those white spots caused by original background. when you're dealing with hair fur by turning smart radius on, we can see how we're getting back some details which would have otherwise lost. so without smart radius, this body of hair becomes translucent, that's less than ideal.
接下来展示边缘的功能，勾选后，再调节半径，可以看到头发边缘需要处理部分区域变大。现在把半径调节到零。测验模糊和羽化在扣头发丝这用到用不到，因为我们需要暴露问题，不需要对比鲜明，也不需要掩饰问题。所以模糊 羽化 对比三个功能可以不用理会。if you're not sure what value you need to use, go to top and check show ege feature, by enableing it, you can see the area where ps will look for extra hairs if radius zero, you wouldn't see anyting. but as i sowly increased it, you can see how this region grows. smooth and feather are two settings, they have no place here because we want to get all these fine details in our end result. there's little place where the contrast shows up i'll skip this feature.
接下来是转变边缘的滑块，调到最大可以看到问题暴露明显，用精修工具处理掉。再把转变边缘滑块居中调节。最后调节边缘的刷子。建议多点击几次，局部一点点的修改。最后浏览模式选择在图层上，勾选净化颜色。最后用频率调节蒙版，测试选区的。此时的转化边缘滑块可以设置到20-50%。its a good way to reveal even more of those rebel hairs by sliding it to right we're going our selection. this reveals more of that white highlights, but that can be edited out. i'll paint a bit around her hair, you're eating into selection, it's similar to what we did in our selection exercise, i'll refine edge brush from pen tool box, i'll start painting all around contour to bring back some of messy hair, it's best to patch one area at a time. change view mode on layers, so we can see how this would look on a new background, but we're still seeing some white on her hair from previous background, enable decontaminate color from the bottom.
85.02-8.10
Channel Selections
通道选择
本节内容讲述RGB不同颜色通道，在同一张照片对应不同的侧重点，适用于复杂选择。拿斑马纹举例子，如何提出掉背景，只剩下一条条的条纹进行调节颜色等编辑。RGB image has one channel per color, each of them contains different info about image. so as i click on any of these, you can see how each hightlight various parts of photo. this can help us create complicated selections that would have been otherwise very hard to pull off. i'd like to isolate black lines and work on them alone.
具体通过Ctrl+I调取水平对话框，输入水平下面左中右三个滑块，右侧滑块推向左侧，背景消失。左侧滑块推向右侧，会出现锯齿的条纹，建议留在中间。这样我们选择了黑色线条，如果下载我们只会发现黑线条，看不到白色背景的。by using levels command. through Ctrl I. you'll get this window, tab right handle and put it towards the left side, you can see background fades away. for the left side, i want to crank up dark lines because my channel selection is going to be that much better. as i go back and forth. you don't want it too far to right.
为检测灵活度，用实色调节，不同的颜色，对应不同的条纹。再次验证好的选择是好编辑的前提。we want the complete opposite, select invert, you can't see from marching ants that we've made a big change. now we have a fantastic selection of black lines. add a solid color adjustment layer, choose any color whatso ever hit okay. the great thing is you can change color on fly double click it.
86.01-8.11
Review
回顾
选择不要忽略套索工具，钢笔工具功能很强大。选区的意义是好编辑的前提。i still keep an open mind when i'm presented with a new project because each image is different. you never stop improving selection skills.
