Udemy PS Chris Barin 69-72
69.04-7.7
Hide Pixel With Layer Masks
从图层蒙版隐藏像素
就直接用橡皮擦工具，开始删除像素，永久性的损坏，导致不能进一步编辑。这点应用到任何情况任何选择。创建图层面板的方法？按右下底部第3徽标，白色方框出现在图层缩略图附近，我可以识别出我有相关的图层蒙版。bad choice would be to grab eraser tool and start deleting pixels. those changes are permanent. it's not going to allow you to do further edits. this is where layer masks come into play. at one point, you might want them back this applied to just about any situation. whenever possible leave yourself options. to create one layer mask, press on this 3rd icon from bottom of layer panel. now this white square has appeared next to my layers thumbnail, and through i can recognize i have a layer mask associated with it.
切换到黑白图？切换到刷子工具，黑色前景让背景消失。切换回白色前景，挽救回黑色背景，可以在两者之间切换，可以做各种编辑。目前毁坏性的编辑？比如加入胡子，可以让蒙版图层失效，这就是可补救编辑图层。让图层蒙版可以区分？首先，关键区分清楚选择图层和图层面板？有高亮提示目前你合作的图层。here's the deal. i'll switch to brush tool and i'll start painting with black now this background goes away. the great thing about it is i can switch to white, now i can bring it back, i can toggle between the two and make all sorts of edits. now destructive editing. after i've move forward, and i've done some other things, say add a fabulous mastache to it. i can change my mind and disable this layer mask. that's non destructive editing at its best. first it's essential make the distinction between selecting layer and selecting layer mask. that's a highlight effect that shows you what you're currently working on.
另外一种方式依据前景背景颜色，如果可以修改红色蓝色等非黑白色调，那是选中图层了，如果切换到图层蒙版，注意前景背景颜色切换到默认的黑白色。因为蒙版切换在黑白两个领域，黑色的移除背景，白色的把被移除的背景修复回来。比如你工具栏选择特定颜色在进行绘制，但背景色素缺失掉，很大程度在图层面板你误选成了蒙版图层。another giveaway letme change the BG and FG colors, when layer chosen, now i'll switch to layer mask, but pay attention to area, it immediately reverted to black and white. that's because layer masks only work with in there two spaces. black hides pixels while white reveals them. so black removes, white add them back in. if you're working with certain colors and you see the missing from your toolbox, that most likely means you've selected your layer mask.
保留刷子工具所有的属性。用方括号调节刷子大小。调节硬度来确保安全的过度。不通过面板，更容易的设置刷子，在画布右键，得到一堆选项。当标注你隐藏的像素，开头的白色矩形如今变成黑色，是PS通知可以隐藏像素的方式。让蒙版暂时失效，右键，选择让给你图层蒙版失效。任何时候都可以从列表中删除掉。the great thing about it is that you retain all great features from your brush tool. you can adjust the size on the fly with square bracket keys. you can change hardness to ensure safter transitions and so on. to easily customize brush without accessing panels, you're right click anywhere on canvas and you get a bunch of options. please note that as you hide pixels, the initial white rectangle now slowly becomes black, that's the PS way of informing you that you're just hidden pixels. if you want to temporarily disable this mask, you can right click it, and here you'll have this option disables layer mask. you can also delete it at any point from the same list.
创建选择蒙版。可以选择点击蒙版缩略图，立刻得到选择。这取决于还没有绘制到的区域。如果想切换到任意选择工具，比如字幕选框，右键-反转选择。一旦反选了，基本上可以锁定变化，失去灵活调整机会。灵活调整可以时不时的手动调整，建议保持选项可以随时调整。you can control click mask thumbnail and you'll immediately get a selection. this is based on area you haven't painted over. switch to any selection tool, say marquee, right click and choose inverse selection. now you're free to work on region. once you do that, you basically fully commit to these changes, and you lost all flexibility. this may come in handy from time to time. i advise you to keep your options open.
创建的工具选择，按图层面板按钮，现在可随心处理照片被隔离部分。用Ctrl+I来反转面板。现在调整出了选中部分的一切。在第一课程，我们做的黑白图片，现在把黑白色恢复到红色。默认的，当你创建调节图层后，自动的，伴随图层蒙版，用F12反转。you create a selection with any tool and you hit this layer mask button. now you're free to work on this isolated part of the photo. we can use Ctrl+I to invert this mask. so now we can adjust everything except that selected path. we made picture black and white, and then we brought back redness on dog's lips. by default, when you create any adjustment layer, it automatically comes with a layermask revert with F12.
频率调节图层，提高曲线，可以看到现在画布的效果，但是注意到图层蒙版，标记出效应区域。如果想给图片增加饱和度，用X反转前景背景，用白色绘制该区域。想用洗褪色的效果，用黑色前景色绘制。i'll crank it up dramatically, you can see it's now affecting entire canvas. but notice our layer mask, pinpoint adjustment work on certain area. saying, i don't want to enhance the dog, that means i'll paint over him with black. notice the tongue and eyes. immediately they revert to their origninal state. if i want to enhance the dog, the opposite effect, i'll use X to flip my colors, i'll paint with white over this area. i'll wash away everything else by painting with a generous black brush. as i brush away you can see results.
70.04-7.8
Activity Combine Images With Layer Masks
用图层面板绑定的图像
用学到的替换天空背景，替换掉单调乏味的。首先两个图片都是打开的，解锁背景图层的方案，双击背景图层，然后把想替换成的天空拖动到被替换的图，按住shift可以拖动到画布中央。改变图层顺序，老图层应该在新图层的上面。we'll use what we've learned so far to replace sky with new one. we'll improve the bottom part, which is dull and washed sky. there're two tabs, i'll unlock this background layer by double clicking it. i'll drag new layer from canvas over in tab this is where we'll work. i'll hold down shift. so the sky was dropped in the middle of canvas. i'll change order of layer, the initial photo should be above this one.
激活图层面板，确保背景设置黑色，增加刷子大小，推荐顶部硬度调节到100%。开始用普通粗细绘制，目标是寥寥几笔搞定任务。可以缩小刷子，降低硬度，得到不错的转化。涂抹山峰的时候，调到白色，100%硬度以恢复。enably a layer mask on this layer. make sure foreground color is set to black and increase brush size dramatically. i recommend you set its hardness to 100% for top part. now starting painting in general strokes. your goal is to do most of work in a few swipes. here you'll have to shrink your brush and turn down your hardness most likely. this is so we'll get a better transition. just in case you paint over these hills, switch to white 100% hardness paint area back in.
总结热键，X在黑白前景背景之间切换，方括号调节刷子大小，右击改变硬度设置。移动鼠标而不是来回来去的，第一没必要分心，第二手动的切换前景背景，浪费时间。i constantly mentioned you should keep mouse cursor in this area rather than constantly moving back and forth between it and when you're in the zone, you don't need any distractions coming up even if that means for a second. if you had to manually switch between your FG and BG colors by ways of tiny icon. that's unnerving.
天空图层容易的移动起，置换是没问题的。底部区域裁剪掉没有升级的。按C调取裁剪工具，在小抓手的帮助下裁剪。按Ctrl，点击蒙版，加入曲线调节图层。从面板中，调节中间线，上移，可以点亮较暗的区域，看清楚更多细节。两次F可以全屏居中。we can grab our sky layer and simply move it up. there's no problem with me repositioning it. let's tackle bottom area, a first crop, it's nothing nice to look at press C to get crop tool. and with help of handles take out section. i'll hold ctrl and i'll click on my mask. i can add an adjustment layer. let's go with curves. this is going to be placed above layer, from this panel, i'll grab this middle line and i'll move it up just a bit. this will lighten all these dark areas. it will help me see details that much better. i'll turn up both sides significantly.
71.04-7.9
Quick Selection Tool And Magic Wands
快速选择工具和魔术棒
热键W调取快速选择工具，选择点击拖拽元素，可以快速选择拓展，保持“自动增强”复选框选中。用中括号调节刷子大小。没必要总是调取工具栏菜单。the hotkey W, you click and drag over element, you want selected. the selection quickly expands, we need to have auto-enhance" checked and that's about it. we can use square bracket keys to adjust brush size. there's no need to fiddle around this menu.
但是PS目前，按Alt程序会知道忽略掉的区域。注意光标旁边的➖。对比选择，来回的做选择。可以点击直接从左侧面板拖拽，习惯用按钮。开始拖拽很费力气，因为魔术棒工具按照PS算法分辨出哪些像素在一起。shift加Alt减，两个结合起来。if PS goes too far, you can hold down Alt, and program will immediately know that it should disregard that area. notice the minus symbol on cursor. this will contract selection, you have to go back forth between two. it's going to be very tricky to pull off a great selection. that's because the magic wand tool uses PS algorithms to figure out what pixels go together. if you want to add hit shift, if you want to subtract use Alt.
容错率在选项栏推荐30%，容错率太高的话选中的不多，容错率太低的话选中太多了。快速选择工具可以迅速达到效果，花时间想清楚用什么工具的问题。the tolerance is critical for the tool. this can be found in options bar. this tells PS how loosely it should look for matching pixels. if you put a value that's too low, you'll have to click lots of time with shift key held down. in general start tolerance of 30 is pretty good. evey situation must be handled in the easiest possible way. if you have a hard time, just deselect and start a new tool.
72.05-7.10
Activity Make An Orange Purple
把橘子染成紫色
用快速选择工具方式和调节图层，开始操控血橙图片，因为难选，所以你才感谢第二种选择工具。当你看到血橙有角度的，所以椭圆快速选择选特定形状是困难的。选择印章工具，可以看到白色前景，选择Alt拖拽，shift在这帮助作用不如Alt。we'll manipulate this photo of blood orange by way of selection tools and adjustment layers. it's going to be difficult but that's how you'll truly appreciate the second option once we move to it. as you can see, this orange is set at an angle, so the elliptical marquee has a hard time picking up the particular shape. grab marquee tool from toolbox in this case, we can see where we should play our cursor, somewhere around this white area, click and drag a little. now add Alt to mix, shift isn't going to be of much help in this situation.
右键选择“转化选择”，抓手可以尽快的润色选择，调节不够，恢复调节前。按住ctrl允许扭曲变形选择，可以更好选择带角度圆形血橙。选择靠近中心一点还是偏离中心，取决于你的选择。right click, from list choose "transform selection", now with handles, do your best to further refine selection, if you simply drag them around, you'll see this is still not enough. we're back to where we started. to gain further control, let's hold ctrl key this will allow us to distort selection so will better fit our blood orange, it's up to you, if you want to limit yourself to central area or if you want to include its rim. we'll tackle outer area in a moment.
棕色橙子 紫色橙子， 下一步包含进一步通过属性面板编辑的调整图层。我们可以通过属性面板设置。从图层面板的底部，可以加入色相/饱和度调节图层。the next step will consist of an adjustment layer that will further edit through its properties panel. we can customize it through this properties panel. from the bottom of your layer panel. let's add a hue and saturation adjustment layer.
复选框选择彩色化，如果色相调节230橙子变成棕色，色相到300变成紫色，给到饱和度遮蔽50亮度0来调节亮紫色。Ctrl+0退出。let's check colorize. change color dramatically. i'll adjust hue to somewhere around 230, this is going to make it blue, i want to make a purple color, go with a hue value of about 300. this is going to give us a weird purple shade for the saturation and lightness 50 and 0. with control+0, see how you did.
退出来看到如果看到边缘，这就是不能从框选中期待的，如同从开始选择设定开始羽化半径。好的选择重做，加入图层蒙版，右键选择羽化选项。可以点击调节图层的缩略图。可以看到属性面板，是我们目前看到的，但是如果点击蒙版，得到不同的选项。感兴趣的就是羽化，调节滑块，避免重新选择选项和调节选区的紧迫感。if we're zooming close, we can clearly see this edge that's what you should expect from marquee tool, unless you set feather radius before you start selection. a good alternative is to undo before we added our layer mask. right click and feather selection from their better option. if you click on this adjustment layer thumbnail, you'll see these properties panel. that's what we've seen so far. but if you click on the mask, you'll get completely different options. if you click on mask, you'll get completely different options. the one i'm interested in is feather. with this slider, i can avoid all the hassle of recreating or modifying my selection.
专注边缘，缓慢的移动滑块，大概10像素的位置，开始逐渐消失，尝试在40像素继续，我们仍旧照顾好外面的部分，但是可以用刷子工具很好的调控。确保白色蒙版绘制。选择硬度，因为我们想要平滑的过度。不透明度大概50%。尝试第二个版本，以来快速选择工具的，预设大小200刷子，取决于图像大小，选择“自动增强”。刷子硬度调节到100%。快速选择工具比椭圆选择工具效果快。i can focus on this edge and slowly move up slider at around 10 pixels. it's starting to go away, but i'll continue to about say 40 pixels this is much better. we still have this exterior part to take care of. but that's easily handled with brush tool. make sure you're painting or mask with white, check hardness because we want a smooth transition. so opacity about 50% should be fine, this is not an essential part of activity. try out version number two, that relies on a quick selection tool. check brush settings before i do anything let's use size of about 200. this is always going to depend on size of image, auto enhance is checked. hard brush, move it to 100%.
