UnCurve free trial
Follow these simple steps, submit the form, and we will correct your interlace to clear out the lens distortions.
Step 1
Make a sequence of five images in solid colors: R, G, B, K (black), and W. Print an interlaced picture of this sequence with a pitch which is optimized for your lens and the viewing distance. The size of the printed interlaced should be the same as the size of the intended picture. An excerpt of the resulting print is shown to the right. Important: the color order must be as shown here.
Step 2
Put the print on a flat surface and cover it with the lens. After adjustment, cover the lens with a glass plate. A fringe pattern will be displayed. Make a photograph of this pattern from the designed viewing distance. This is the fringe pattern photo. Note: the correction of fringe patterns with two colors or less is not worth the effort.
Step 3
Upload the fringe pattern photo and your interlaced image to shareable cloud storage. Fill in the form and submit it. We will create for you a warped version of your interlaced image which suits your lens distortions.
Note: It is common to use a very high pixel density for the interlaced image in both directions. As a result, it tends to occupy an enormous amount of storage (often over 1GB). To save storage space and internet traffic, we recommend using for the pixel density in the vertical direction a value which equals approximately to twice the pitch. For example, if your pitch is nearly 40lpi, we recommend using 80lpi for the vertical pixel density (the horizontal pixel density must remain intact). This has no effect on picture quality.