{"slug":"lum-mask-tonal-adjust","title":"摄影后期必备！如何用亮度蒙版技术精准调整照片影调","author":"Thomas看看世界","date":"2020-06-21","wechat":"https://mp.weixin.qq.com/s?__biz=MzI4NDA5MzE5NQ==&mid=2247490702&idx=1&sn=aee46d6b107faed718f991501806b9c4&chksm=eb81e2eadcf66bfc3e1830c3efcc55984870d801596f220d122d5d0d32784b7f0881f0354db7&scene=21#wechat_redirect","blocks":[{"t":"h","x":"Thomas看看世界","xe":"Thomas Chu Photo"},{"t":"p","x":"亮度蒙版（英文名：Luminosity Masks，国内也有译作明度蒙版、灰度蒙版），是一种基于亮度的局部选择工具。","b":false,"xe":"Luminosity masks are a luminance-based local selection tool."},{"t":"p","x":"如果说安塞尔亚当斯的“分区曝光法”，为摄影师的前期拍摄提供了指导。那么亮度蒙版，则为摄影师，特别是风景摄影师，提供了一种重要的后期局部调整工具。","b":false,"xe":"If Ansel Adams' Zone System guided photographers at capture time, then luminosity masks give photographers — landscape shooters especially — an essential tool for local adjustments in post."},{"t":"p","x":"今天的教程是亮度蒙版系列教程的第8期，我会和大家分享，如何用亮度蒙版，对画面的局部影调进行精确的选取和调整。","b":false,"xe":"Today is episode 8 of the luminosity mask series: how to precisely select and adjust local tones with luminosity masks."},{"t":"h","x":"视频教程","xe":"Video Tutorial"},{"t":"bili","bv":"BV1mK411p7G9","bpic":"bili-1","bt":"摄影后期必备！如何用亮度蒙版技术精准调整照片影调"},{"t":"p","x":"这一篇是上面视频的完整图文整理，亮度蒙版系列第 8 期。前几期讲了蒙版生成和曝光合成，这一期回到亮度蒙版最核心的功能：对单张照片的影调做精确控制。视频里连做三个演示——中间调加对比度、暗部做胶片空气感、局部提亮阳光照耀的岩石和人物——从动手生成通道，到 TK 面板一键挂蒙版，再到组蒙版二次限制，把「影调分区控制」讲成了一条可以照着做的流程。","xe":"This is the fully illustrated companion to the video above — episode 8 of the luminosity mask series. After generation and exposure blending, this episode covers the technique's core: precise tonal control of a single image. Three live demos — an S-curve on the midtones, a filmic matte lift in the shadows, and a local brightening of sunlit rock and figure — walk the full pipeline from generating channels, to one-click masks in the TK panel, to a second round of restriction via a group mask.","b":false},{"t":"p","x":"先看本期的知识地图。下面这张大纲卡截自视频开头，列出了系列前几篇的入口和动作下载方式；正文的三个演示都基于同一张雪山峡湾的日出全景。","xe":"Start with the series map: this outline card from the top of the video links the previous episodes and the action download; the three demos below all use the same panoramic sunrise over a snowy fjord.","b":false},{"t":"img","f":"v01","w":852,"h":480},{"t":"h","x":"01 工具从哪来：动作与插件都能生成","xe":"01 Where the Masks Come From: Actions and Plugins"},{"t":"p","x":"亮度蒙版的主流生成方式有两种：动作和插件。Thomas 自己提供了 PS 动作，下载后双击几步安装，在动作面板里选中「亮度蒙版 Thomas」的生成动作、点击运行，通道面板里就会生成一整套亮度通道（视频 1:27 处）：亮一到亮七，从较宽的亮部区域一直到只含最亮部分；暗一到暗七，从浅暗直到极暗；再就是中间调一到七。","xe":"There are two mainstream ways to generate luminosity masks: actions and plugins. Thomas offers his own Photoshop action — install it, run the generator in the Actions panel, and the Channels panel fills with a full set (at 1:27 in the video): Lights 1-7 from broad bright areas down to only the very brightest, Darks 1-7 from faint shadows to the deepest blacks, and Midtones 1-7 in between.","b":false},{"t":"img","f":"v03","w":852,"h":480},{"t":"p","x":"不想用动作，插件也很成熟：雪人插件、TK Actions 面板在淘宝都有正版售卖，百度搜「亮度蒙版插件」还有各种免费选择（视频 0:54 处）。Thomas 强调，这些工具核心都一样——帮你生成亮度蒙版，选顺手的就行。","xe":"If you prefer plugins, the Snowman panel and TK Actions are both sold legitimately on Taobao, and a Baidu search for 'luminosity mask plugin' turns up plenty of free options too (at 0:54 in the video). Thomas's point: they all do the same core job — generating the masks — so just pick the one you like.","b":false},{"t":"h","x":"02 中间调 S 曲线：对比度加在该加的地方","xe":"02 Midtone S-Curve: Contrast Where It Belongs"},{"t":"p","x":"案例是一张雪山峡湾的日出全景。想给照片增加对比度和饱和度，最直觉的做法是用曲线拉一个 S 型——效果立竿见影，但高光和阴影区域也会受到很大影响，整张照片的反差一下子变得特别突出（视频 2:31 处）。","xe":"The case is a panoramic sunrise over a snowy fjord. The intuitive way to add contrast and saturation is an S-curve — instant results, but the highlights and shadows take a heavy hit, and the whole photo suddenly turns harsh and over-contrasted (at 2:31 in the video).","b":false},{"t":"img","f":"v02","w":852,"h":480},{"t":"img","f":"v05","w":852,"h":480},{"t":"p","x":"解决办法是用中间调蒙版限制这条曲线。在通道里选一个稍宽的中间调，比如 MID2，按住 Ctrl 键点击它转换成选区；把选区转到蒙版上的办法是在已有蒙版上用「编辑-填充」填黑色，再按 Ctrl+I 反相——因为通道是黑底白色、蒙版要黑底黑目标，反相之后才得到中间调的亮度蒙版（视频 3:13 处）。套上蒙版后，S 曲线只作用于中间调，对比度和饱和度提上来了，画面却舒服得多。","xe":"The fix is to restrict that curve with a midtone mask. Pick a fairly broad midtone such as MID2 in the Channels panel and Ctrl-click it into a selection; to move the selection onto a mask, fill it with black via Edit-Fill on the existing mask, then press Ctrl+I — the channel is white-on-black while the mask needs the inverted arrangement, and only after inverting do you hold a true midtone luminosity mask (at 3:13 in the video). With the mask in place the S-curve acts on the midtones alone: contrast and saturation rise while the image stays comfortable.","b":false},{"t":"img","f":"v04","w":852,"h":480},{"t":"p","x":"用 TK Actions 面板则更直接：它的顶部把横轴想象成一张直方图，中间那块就是中间调——选中曲线拉一个再夸张的 S 型，点选中间调 2、再点 Apply，蒙版就直接挂到了曲线图层上（视频 4:30 处）。按住 Alt 键关掉蒙版对比一下：没有亮度蒙版时对比度提升非常猛、反差太强；有了它，提升集中在中间调，照片看起来才和谐（视频 4:55 处）。","xe":"The TK Actions panel makes it even more direct: its header treats the horizontal axis as a histogram, and the middle block is the midtones. Drag a wildly exaggerated S-curve, click Midtones 2, hit Apply — the mask lands straight onto the Curves layer (at 4:30 in the video). Alt-click the mask off to compare: without it the contrast swing is brutal; with it, the lift concentrates in the midtones and the photo reads harmonious (at 4:55 in the video).","b":false},{"t":"img","f":"v06","w":852,"h":480},{"t":"h","x":"03 暗部空气感：胶片曲线的精准做法","xe":"03 Shadow Air: The Precise Matte Curve"},{"t":"p","x":"第二个应用是很多人喜欢的「胶片曲线」空气感：把画面暗部提上来，黑位发灰、氛围立刻变柔。但曲线是整体拉动的，提暗部时多少会波及亮部和中间调。老办法是在曲线上密密地打点锚死两端——可行，但并不直观（视频 5:46 处）。","xe":"The second application is the beloved filmic matte: lift the shadows, the black point softens, the mood turns gentle. But a curve is pulled as a whole, and lifting shadows inevitably disturbs the highlights and midtones. The old trick is pinning the ends with anchor points — workable, hardly elegant (at 5:46 in the video).","b":false},{"t":"p","x":"有了亮度蒙版就多了一种方式：在 TK 面板上先试暗 6——它只选画面非常黑的那一小块区域，点 Apply 挂到曲线；因为选择的范围太少，提亮量不够，换暗 5 再 Apply——插件切换蒙版就是这么方便（视频 6:02 处）。结果：石头的阴影处提亮了很多，照片里几乎没有重黑色，但中间调和高光完全没受影响，整张照片的观感基本不变（视频 6:30 处）。","xe":"With luminosity masks there's a new way: on the TK panel try Darks 6 first — it selects only the very darkest sliver; Apply it to the curve, find the lift too small because the range is narrow, then switch to Darks 5 and Apply again — swapping masks is exactly what the plugin makes effortless (at 6:02 in the video). The result: rock shadows lift substantially, the photo loses its heavy blacks, yet the midtones and highlights are untouched and the overall look barely changes (at 6:30 in the video).","b":false},{"t":"img","f":"v07","w":852,"h":480},{"t":"img","f":"v08","w":852,"h":480},{"t":"h","x":"04 局部提亮：阳光区域刷出来","xe":"04 Local Brightening: Painting In the Sunshine"},{"t":"p","x":"前面的调整都作用于整个亮度区间，如果想只提亮画面里岩石和人这些被阳光照亮的区域、让阳光明媚的感觉更突出呢？直接用画笔刷当然可以，但边缘很容易刷过界，看起来毛毛躁躁（视频 7:19 处）。","xe":"Everything so far acted on whole tonal bands. What if you want to brighten only the sunlit rock and the figure, amplifying that sunny glow? Freehand brushing works, but edges stray easily and the result looks ragged (at 7:19 in the video).","b":false},{"t":"p","x":"Thomas 的流程是：新建曲线调整图层并整体提亮，按 Ctrl+I 把蒙版反相成全黑（视频 7:44 处），然后用白色画笔把目标区域随便刷出来——刷得粗糙完全没关系，因为稍后还有亮度蒙版来把关（视频 8:00 处）。接着新建一个组，把曲线图层放进组里，再给组配蒙版：对照通道观察，亮一中想提亮的石头高光面、人的高光面接近白色或浅灰，不想提亮的阴暗面和背景中景则足够黑，选亮一就可以（视频 8:57 处）。按住 Ctrl 点击亮一通道生成选区，删掉组的空蒙版再新建蒙版，选区就自动转成了组蒙版。","xe":"Thomas's pipeline: add a Curves layer and lift it, press Ctrl+I to invert its mask to black (at 7:44 in the video), then freely brush the target areas back in white — sloppy strokes are fine, because a luminosity mask will arbitrate later (at 8:00). Next create a group, move the Curves layer inside, and mask the group: checking the channels, in Lights 1 the sunlit faces of rock and jacket read near-white or light gray while the shadow sides and the darker background fall to black — good enough (at 8:57 in the video). Ctrl-click Lights 1 for a selection, delete the group's empty mask and add a new one, and the selection converts automatically.","b":false},{"t":"img","f":"v09","w":852,"h":480},{"t":"img","f":"v10","w":852,"h":480},{"t":"p","x":"两组前后对比最能说明问题：没有亮度蒙版限制时，涂抹提亮的区域边缘毛躁、亮度诡异；有了亮度蒙版，因为它本身就基于原图的自然光线——亮的地方提亮多、暗的地方提亮少甚至不提亮——所以笔刷再毛躁，最终也只提亮了石头的高光区域和人的衣服（视频 9:47 处）。反过来，如果把画笔刷出的那层位置蒙版禁掉，只留亮度蒙版，整个画面所有高光都会被提亮，而不只是你想提的这一小块（视频 10:30 处）。两层蒙版共同作用，才有最终精确的画面。","xe":"Two before-afters tell the story: without the luminosity mask, brushed areas show ragged edges and eerie brightness; with it — the mask being derived from the image's own light, lifting bright areas more and dark ones little or not at all — even the sloppiest strokes end up brightening only the sunlit rock faces and the jacket (at 9:47 in the video). Conversely, disable the painted position mask and keep only the luminosity mask, and every highlight in the frame lifts, not just the patch you meant (at 10:30 in the video). Only both masks together yield the final precision.","b":false},{"t":"img","f":"v11","w":852,"h":480},{"t":"h","x":"05 总结：分区加局部，影调随取随用","xe":"05 Wrap-Up: Bands Plus Locals, Tone on Demand"},{"t":"p","x":"亮度蒙版真正好用的地方在这一期里全部亮出来了：最暗部、较暗部、中间调、亮部，任一亮度区间都可以单独拎出来做精确调整；再通过分组，把调整进一步限制在画面的某个局部——石头的亮部、人的最暗区域、山的中间调，随取随用（视频 10:57 处）。中间调 S 曲线、暗部胶片感、局部提亮，只是这套思路的三个最常见的出口而已。","xe":"This episode lays out what makes luminosity masks so useful: the deepest shadows, the softer shadows, the midtones, the highlights — any tonal band can be isolated and adjusted precisely; and through grouping, that adjustment can be confined further to any local region — the bright faces of a rock, the darkest folds of a jacket, the midtones of a mountain (at 10:57 in the video). The midtone S-curve, the matte shadows and the local lift are simply the three most common outlets of one idea.","b":false},{"t":"quote","x":"1. 亮度蒙版靠动作或插件生成：亮 1-7、暗 1-7、中间调 1-7 覆盖从极暗到极亮的所有亮度区间，工具不同、核心相同；2. 给中间调拉 S 曲线加对比度饱和度，务必用中间调蒙版（如 MID2）限制，否则高光阴影一起遭殃；3. 胶片空气感用暗部蒙版提黑位，暗 6 范围不够就换暗 5，中间调高光不受波及；4. 局部提亮 = 曲线提亮 + Ctrl+I 黑蒙版随便刷 + 组蒙版挂亮一通道，画笔毛躁也不怕，两层蒙版共同限制才有精确影调。","xe":"1. Generate masks with an action or plugin: Lights 1-7, Darks 1-7, Midtones 1-7 cover every tonal band from deepest black to brightest white — tools differ, the core is identical; 2. When an S-curve adds midtone contrast and saturation, always restrict it with a midtone mask (say MID2), or highlights and shadows suffer; 3. For the filmic matte, lift the black point on a Darks mask — Darks 6 too narrow? switch to Darks 5 — leaving midtones and highlights untouched; 4. Local brightening = lifted curve + Ctrl+I black mask brushed loosely + a group mask loaded from Lights 1: sloppy strokes are fine, and only two masks together give precise tonal control."},{"t":"p","x":"亮度蒙版自制动作下载：","b":false,"xe":"Download the custom luminosity mask action:"},{"t":"p","x":"链接: https://pan.baidu.com/s/1pLUY8IC4pEOuJ3DWuTb4hA","b":false,"xe":"Link: https://pan.baidu.com/s/1pLUY8IC4pEOuJ3DWuTb4hA"},{"t":"p","x":"提取码: kci3","b":false,"xe":"Extraction code: kci3"}],"titleEn":"Precise Tonal Adjustments with Luminosity Masks"}