DxO ViewPoint is a highly-specialized software dedicated to correcting geometrical problems in your images: distortion, volume deformation, and perspective. The aim of this tutorial is to help you get started using the software by presenting you will a certain number of basic corrections that you can with with DxO ViewPoint as a standalone application. (DxO ViewPoint can also be used as a plugin for DxO OpticsPro, Lightroom, Aperture, and Photoshop.
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The DxO ViewPoint 2 standalone application interface
To follow this tutorial, you will need:
Contents
A geometrical correction tool
DxO ViewPoint is a highly-specialized software whose role is to correct geometrical problems in images:
How DxO ViewPoint works
Version 2 of DxO ViewPoint automatically correctsdistortionby usingDxO Optics Module, on condition that the equipment is supported. The strength of the software also resides in its manual correction tools.
As for correctingvolume deformation, this is automatically, and does not depend on DxO Optics Modules. Of course, the intensity of this correction can be adjusted manually.
DxO ViewPoint 2 offers 4 different straightening modes for handling perspective problems:force vertical parallels,force horizontal parallels,force rectangle, and8-point correction. These last two corrections let you act on the four sides of an image.
Note
Automatic distortion correction requires an internet connection for downloading and installing DxO Optics Modules.
Where to begin
For purposes of this tutorial, we will present the functions of the standalone version of DxO ViewPoint, which lets you correct images inJPEGandTIFF(8- or 16-bit) formats.
After launching the software, proceed as follows:
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Note
So long as you do not save the file, the corrections are reversible.
Functional modes
The volume deformation correction is automatic, and is available in two different modes. Choose the mode that addresses the problem that is visible in your image:
Example of diagonal volume deformation correction using DxO ViewPoint 2’s dedicated tool
Correcting volume deformation
To correct the deformation of spherical or cylindrical elements in an image:
If necessary, you can make manual adjustments to the correction by using theIntensityslider. Correcting volume deformation always results in loss of part of the image along the perimeter. After each correction, you can check theCropbox in thededicated paletteso that DxO ViewPoint will apply a crop automatically.
Note
By default, automatic cropping preserves the original proportions of the image (Aspect ratio: Preserve).
Functional modes
Now we will introduce you to DxO ViewPoint’s four modes for correctingperspective:Force parallelsandForce rectangle, which are:
Fixingperspectivealso offers two correction intensities:
The same image corrected using the Perspective tool in Complete and Natural modes
Forcing vertical parallels
To straighten the vertical lines of a building:
Straightening verticals in natural mode (intensity 75%).
Note
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You can useLoupetool on the bottom right to place your lines and points with the greatest possible position, which will also let you avoid zooming in on the entire image.
Forcing a rectangle
To fix the four sides of a square or rectangular subject:
Note
You can choose to display a reference grid to help you with your corrections. Go to theDisplaymenu and selectToggle grid overlay(or click on theGridbutton in the toolbar, or simply use the keyboard shortcutG).
Note
If the straightening lines, which are blue by default, are too hard to see because of the colors in your image, you can change their color by clicking on the small (default blue)Line colorsquare on the bottom left. That will open up a color picker from which you can choose the color you prefer.
Cropping
Of course, you can activate automatic cropping by clicking on thebutton in theCroppalette. By default, the height/width ratio of the image is preserved, but you can change it via theAspect ratiomenu.
If you would like to learn more about the possibilities that DxO ViewPoint offers, see our tutorials and videos or theuser guide.
Photos credits: Constantin Foniadakis, Olivier Lambolez, Bruce Ashford
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