{"slug":"ptgui-panorama-guide","title":"还在用PS接片？更好用的PTGUI全景拼接后期教程！","author":"Thomas看看世界","date":"2023-03-26","wechat":"https://mp.weixin.qq.com/s?__biz=MzI4NDA5MzE5NQ==&mid=2247497197&idx=1&sn=009ce4ee78cde2896d3ead49079d893e&chksm=eb820b89dcf5829f444de34c5be82524e15aaaa1134c913bc083ea2d942f81e95e49a8e1a517&scene=21#wechat_redirect","blocks":[{"t":"p","x":"经常有同学拿着照片来问我，说用Photoshop进行全景拼接，照片直接错位了，或者显示无法拼接。","b":false,"xe":"Students often come to me with photos where Photoshop's panorama stitching failed — the frames come out misaligned, or PS simply refuses to stitch them."},{"t":"p","x":"遇到这种情况，我都会让大家尝试一个更强大的全景接片软件 - PTGUI。","b":false,"xe":"Whenever that happens, I tell them to try a much more powerful stitching tool — PTGui."},{"t":"p","x":"今天的视频教程，Thomas就会演示这个软件的基本操作，以及如何把一张PS拼接失败的照片用PTGUI接起来~","b":false,"xe":"In today's video tutorial, Thomas demonstrates the basics of this software and how to rescue a panorama that PS failed to stitch."},{"t":"img","f":"img-01","w":1080,"h":608},{"t":"h","x":"视频","xe":"Video"},{"t":"bili","bv":"BV1BT411q7g4","bpic":"bili-1","bt":"比PS更强大的接片软件！PTGUI全景照片教程"},{"t":"p","b":false,"x":"这一篇是上面视频的完整图文整理。Camera Raw 的全景合并并非全能——遇到仰拍高楼这类复杂场景，它常常给出畸变严重、水平线歪斜的结果。Thomas 演示了用专门的全景接片软件 PTGui 从载入、对齐、调视角、换投影到裁剪输出的完整流程，并配有关键帧截图与时刻索引。","xe":"This is the fully illustrated companion to the video above. Camera Raw's panorama merge is not almighty — for complex scenes like upward-shot high-rises it often returns heavy distortion and a skewed horizon. Thomas walks through the complete PTGui workflow — loading, aligning, adjusting the viewpoint, switching projections, cropping and exporting — with keyframe screenshots and timestamps."},{"t":"p","b":false,"x":"先看对比。下图是同一组仰拍照片交给 Camera Raw 合并全景图的结果：楼体被拉成了曲线，水平线歪斜，畸变严重——因为 Camera Raw 可选的投影模式和可编辑的地方都很少（视频 0:31 处）。这正是我们需要 PTGui 的原因。","xe":"Start with the comparison. Below is what Camera Raw's panorama merge does to the same set of upward-shot frames: the tower bends into a curve, the horizon skews, distortion runs wild — because Camera Raw offers few projections and little to edit (at 0:31 in the video). That is exactly why PTGui is needed."},{"t":"img","f":"v01","w":852,"h":480},{"t":"h","x":"01 Camera Raw 的局限与 PTGui 的位置","xe":"01 Camera Raw's Limits, PTGui's Role"},{"t":"p","b":false,"x":"案例是一组城市高楼：Thomas 通过仰拍的方法，把整栋建筑从底下到楼顶都拍了下来（视频 0:19 处）。这种大角度仰拍的建筑全景，正是 Camera Raw 全景合成的软肋——它只有三个投影选项，无法手动干预，合并结果难以满足建筑横平竖直的要求。","xe":"The case is a city high-rise: Thomas shot the whole building from base to top by pointing the camera upward (at 0:19 in the video). This kind of steep upward panorama is exactly where Camera Raw's merge falls short — only three projections, no manual control, and results that rarely keep a building straight."},{"t":"p","b":false,"x":"PTGui 则是专门用于全景接片的软件，界面非常简单：打开就是「工程助理」，加载图像、对齐图像、创建全景三步走（视频 1:04 处）。下面按实际操作顺序展开。","xe":"PTGui, by contrast, is dedicated stitching software with a simple interface: it opens straight into the Project Assistant — load images, align images, create panorama, three steps (at 1:04 in the video). The rest of the article follows the actual workflow."},{"t":"h","x":"02 载入与对齐：三步进入全景编辑器","xe":"02 Load and Align: Three Steps to the Editor"},{"t":"p","b":false,"x":"第一步，在工程助理里点击「加载图像」，把刚刚那几张照片载入 PTGui（视频 1:15 处）；第二步，在设置选项里点击「对齐图像」（视频 1:27 处）。","xe":"Step one: in the Project Assistant, click 'Load Images' to bring in the frames (at 1:15 in the video). Step two: click 'Align Images' (at 1:27 in the video)."},{"t":"img","f":"v02","w":852,"h":480},{"t":"img","f":"v03","w":852,"h":480},{"t":"p","b":false,"x":"对齐之后，PTGui 非常核心的窗口「全景编辑器」就打开了。默认状态下软件把图像旋转了 90 度多，这时按住鼠标右键把画面旋转回垂直状态，再用鼠标左键把它拉下来（视频 1:40 处）。","xe":"After aligning, PTGui's core window — the Panorama Editor — opens. By default the software has rotated the image a little over 90 degrees; hold the right mouse button to rotate it back to vertical, then pull it down with the left button (at 1:40 in the video)."},{"t":"img","f":"v04","w":852,"h":480},{"t":"h","x":"03 全景编辑器：任意视角、预览曝光与接缝","xe":"03 Panorama Editor: Viewpoints, Preview Exposure, Seams"},{"t":"p","b":false,"x":"PTGui 相比 PS 非常强的一点，是全景编辑器里可以任意设置视角（视频 2:02 处）：可以垂直 90 度往天空看，可以平视，也可以俯视。这张照片的目标，是让建筑尽量回到垂直的平视状态。","xe":"Where PTGui crushes Photoshop is the freedom of viewpoint in its panorama editor (at 2:02 in the video): look straight up at 90 degrees, level, or downward. For this frame the goal is to bring the building back to a level, vertical view."},{"t":"img","f":"v05","w":852,"h":480},{"t":"p","b":false,"x":"编辑器里还有两个贴心功能。一是在显示设置里改变预览曝光——比如加 1.2 档，把暗部看清楚——它只影响当前显示，不会影响最终的拼接（视频 2:30 处），这样就能看清汽车和楼体的变形情况。二是可以显示接缝：一目了然每张原片负责哪些区域、接缝落在何处（视频 2:44 处）。","xe":"Two more thoughtful features. First, the preview exposure in the display settings — say +1.2 stops to see into the shadows — affects only the display, never the final stitch (at 2:30 in the video), letting you inspect how the cars and the tower are warping. Second, you can show the seams: exactly which areas each source frame covers, at a glance (at 2:44 in the video)."},{"t":"img","f":"v06","w":852,"h":480},{"t":"img","f":"v07","w":852,"h":480},{"t":"h","x":"04 投影与画布：从墨卡托到横平竖直","xe":"04 Projections and Canvas: Mercator to Straight Lines"},{"t":"p","b":false,"x":"PTGui 最强大的就是投影功能（视频 2:57 处）：PS 里只有三个投影选项，这里有直线、圆柱、各种鱼眼、立体、墨卡托等等。Thomas 最常用的是墨卡托投影——就是世界地图的那种投影方式——投出来的长宽比和效果都刚刚好，很多时候比圆柱还好（视频 3:13 处）。","xe":"PTGui's most powerful feature is its projections (at 2:57 in the video): where Photoshop offers three, here you get rectilinear, cylindrical, several fisheyes, stereographic, Mercator and more. Thomas's favorite is Mercator — the world-map projection — which nails both aspect ratio and look, often better than cylindrical (at 3:13 in the video)."},{"t":"img","f":"v08","w":852,"h":480},{"t":"p","b":false,"x":"选定投影后再调整视角：用鼠标左键抓住画面微调，必要时右键再旋转一下。如果上半部分被裁掉了，可以通过上下的画布控制条扩大画布，把顶部被裁掉的树梢都显示出来（视频 3:41 处）。这一步要调得小心一些，仔细观察怎么调才能让建筑基本达到横平竖直（视频 4:16 处）。","xe":"With the projection set, refine the viewpoint: nudge the frame with the left button, rotating with the right button when needed. If the top gets cut off, expand the canvas with the controls above and below until even the treetops at the frame's top show up (at 3:41 in the video). Adjust carefully here, watching for the point where the building sits straight and level (at 4:16 in the video)."},{"t":"img","f":"v09","w":852,"h":480},{"t":"p","b":false,"x":"调好后就能看到 PTGui 的强大之处：建筑横平竖直，画面里汽车和其他区域的变形都非常小（视频 5:07 处）——这正是任意视角加丰富投影带来的自由度。","xe":"When it comes together, PTGui's strength is on full display: the building sits dead straight, and the cars and everything else warp only slightly (at 5:07 in the video) — the freedom that an adjustable viewpoint plus rich projections buys you."},{"t":"img","f":"v10","w":852,"h":480},{"t":"h","x":"05 裁剪、控制点与输出设置","xe":"05 Cropping, Control Points, and Export"},{"t":"p","b":false,"x":"接下来裁剪：把鼠标移到画布边缘，出现双向箭头后往里拖（视频 4:29 处）。地面想多保留一点也没关系——可以后面在 PS 里对这块区域再做变形；顶部保留一点点树就构成不错的构图（视频 4:48 处）。","xe":"Next, cropping: move the cursor to the canvas edge until a double arrow appears, then drag inward (at 4:29 in the video). Keeping more ground is fine — you can warp that strip later in Photoshop; a sliver of trees at the top makes a pleasing frame (at 4:48 in the video)."},{"t":"img","f":"v11","w":852,"h":480},{"t":"p","b":false,"x":"PTGui 另一个核心功能是控制点（视频 5:26 处）：有些星空全景用 PS 拼接甚至会直接提示「无法拼接」，这时就可以用 PTGui；如果自动对齐失败，也能通过控制点手动拼接；控制点还能校正水平线和垂直线——这个比较进阶的功能会留到下期教程详细讲。","xe":"PTGui's other core feature is control points (at 5:26 in the video): some starry-sky panoramas make Photoshop give up entirely with 'could not stitch'; PTGui handles them, and when automatic alignment fails you can stitch manually with control points. Control points also correct horizons and vertical lines — an advanced topic saved for a future tutorial."},{"t":"p","b":false,"x":"最后是输出（视频 6:26 处）：直接出图可选 JPEG 或 TIF；要在 PS 里继续编辑，就选 PSB 或 PSD。全景文件一般都很大，所以 Thomas 直接选 Photoshop 的 PSB 格式：通道 16 位、压缩选「无」、保留图层，输出色彩空间选 PS 的工作空间 Adobe RGB 或 ProPhoto RGB，然后点击「创建全景」（视频 6:40 处）。","xe":"Finally, export (at 6:26 in the video): for direct delivery choose JPEG or TIFF; for further editing in Photoshop choose PSB or PSD. Panoramas get huge, so Thomas goes straight to Photoshop's PSB format: 16-bit channels, compression 'None', layers preserved, and the output color space set to Photoshop's working space — Adobe RGB or ProPhoto RGB — then hit 'Create Panorama' (at 6:40 in the video)."},{"t":"img","f":"v12","w":852,"h":480},{"t":"p","b":false,"x":"创建完成后，在 PS 里打开这个 PSB 文件，就可以对它进行进一步的调色了（视频 7:06 处）。PTGui 软件可以在搜索引擎里搜「PTGui」到官网购买正版（视频 7:19 处）。以上就是本期的全部内容——从 Camera Raw 拼不好的那组楼，到横平竖直的全景成片，PTGui 的全景编辑器证明了自己的核心地位。","xe":"Once created, open the PSB in Photoshop for further color grading (at 7:06 in the video). You can find PTGui by searching the five letters online and buying a license from its official site (at 7:19 in the video). That is the whole workflow — from the tower Camera Raw could not stitch straight to a finished panorama with true verticals, the Panorama Editor proves why it is PTGui's core."},{"t":"img","f":"v13","w":852,"h":480},{"t":"quote","x":"1. Camera Raw 全景合并遇上天文仰拍建筑就露怯：三个投影、无法干预，楼体弯曲、水平线歪斜；2. PTGui 三步入门：工程助理加载图像、对齐图像，右键旋转回垂直后进入全景编辑器；3. 编辑器三板斧：任意设置视角（垂直 90 度到俯视）、预览曝光只改显示不影响拼接、显示接缝检查每张原片负责的区域；4. 投影选墨卡托常常比圆柱更好，配画布扩展与微调实现横平竖直；输出选 PSB（16 位、无压缩、保留图层、Adobe RGB/ProPhoto），回 PS 继续调色。","xe":"1. Camera Raw's merge buckles on upward-shot buildings: three projections, no control, curved towers and skewed horizons; 2. PTGui in three steps — Load Images and Align Images in the Project Assistant, rotate back to vertical with the right button, and the Panorama Editor opens; 3. The editor's three moves: set any viewpoint from 90-degrees-up to looking down, preview exposure that only affects the display, and show seams to see each frame's territory; 4. Mercator often beats cylindrical; expand the canvas and fine-tune until verticals are true; export PSB (16-bit, no compression, layers kept, Adobe RGB/ProPhoto) and keep grading in Photoshop."}],"titleEn":"Still Stitching in PS? A Better Panorama Workflow with PTGui"}