Want to make an object that’s currently hidden visible again because it’s cut into two by a stitch seam, you need to bring out the Detail Viewer and choose to “Show Seams”. Want to block out the tripod, you need to paint it red, which you can encircle with the Draw tool and fill your enclosed object with red using the Fill tool With PTGui, you can paint the objects you want to mask out in red or green, but notice that red is for hiding objects from your final panorama, while green is for preserving objects so they come out visible in your output. This technique is used to fix blending errors. Masking is frequently resorted to when there are moving objects in your panoramic images that result in doubles, or when you don’t want to see your tripod showing on the nadir image. That way, by having your 360 camera swiveling on a fixed point, you have ensured that the perspective remains the same, and saved yourself the headache of having stitching errors. This technique is also explained by its inventor, Philippe Hurbain on his personal website. If you don’t have a panohead, you can also craft a philopod, which is a piece of string tying the no-parallax point of your camera at one end with a weight at the other end. To solve that problem, you need to attach a panoramic head, panoheadfor short, onto your tripod, to help rotate your camera around the front of the lens. Now suppose if you mount your camera on a tripod and start turning it on its base, the lens/perspective is constantly changing as you take images for your panorama.
The viewpoint for your camera lens is its entrance pupil, also known as no-parallax point or nodal point. To avoid having stitching errors, we recommend that you avoid having parallax at all costs that is also to say, ALL of your images to be stitched into a panorama must be shot from ONE single viewpoint. In this article I analyze some of the PTgui's advanced functions: t1 and t2 control points, the Optimizer advanced mode and finally the panorama creation with the various “Layers “ output options.Parallax is a phenomenon where two objects in your source images appear to have changed their relative positions from one to another, because of changes in the camera’s perspective. on Tools/Options/Directories&Files we can configure until 5 drives/folders at the same time for temporary files, to greatly expand the storage space support for PSB Photoshop output format, which permits to realize very large dimensions images, until 300.000x300.000 pixel, exceeding the previous barrier of 4G byte as maximum dimension for an image Added some notes about compatibility with PTgui 7.īefore starting, we would like to present some news included in the last release of PTGui, the 5.7 issued on March 2006: EXIF data are read also by TIFF files (in addition to JPGs), that is a very useful function for people who shoot in RAW format and subsequently converts in TIFF format: in this way, the focal length of utilized lens and the sensor size are imported automatically.
PTGUI PRO V7.0 UPGRADE
In this new version there are also some code optimizations, so that we advice the upgrade also to people who are not interested on above mentioned news. The entered control points don’t define - as previously told - the correspondence points between images, but straight lines that actually are placed vertically or horizontally.
PTGUI PRO V7.0 WINDOWS
The front side of S.Miniato a Monte church helps a lot us in this operation, thanks to the abundance of ortogonal references.Īs you can see, PTGui opens two windows (also if the image is one) and the reference points are entered one for each image. CP1, for example, defines an horizontal line which ends are indicated in the two windows. The same thing is for CP2, 5 and 6 (horizontal) and for CP3 and 4 (vertical). To obtain an exact calculation, we have to enter more horizontal and vertical lines covering all the image.
Poor or not well distribuited control points will lead in higher calculation errors. Now we go to the advanced interface of the “Optimizer” panel : In the panel “Panorama settings” we have only to set the rectilinear projection (Rectilinear -flat). Passiamo adesso al pannello "Optimizer", che stavolta dovremo utilizzare con l' interfaccia avanzata : Nel pannello "Panorama settings" si deve solamente impostare la proiezione rettilineare (Rectilinear -flat).
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