I want to rotate a image with camara extri parameters matrix. but have error, can you help me amend it ? please!!! using Images, ImageFeatures, FileIO, ImageView using CoordinateTransformations, StaticArrays, ImageTransformations, LinearAlgebra; img2 = load(“…/test/all_3/2.jpg”); rot_1 = [0.…

What is the error (copy it please), so others may be of more help. What does “image in accessory” mean? This is from comments in the ImageTransformations.jl source. Have you tried rotating this way? julia> using Images, CoordinateTransformations, TestImages, OffsetArrays julia> img = testimage("l…

use full paths (your use of three dots may be a problem) I stored a copy of your image locally as “test.jpg” using Images, ImageTransformations, ImageMagick, CoordinateTransformations, OffsetArrays, FileIO imagefile = "/home/usr/Pictures/test.jpg" # use your full path here img = load(…

The above worked, i kown . tfm = recenter(RotMatrix(-pi/2), center(img)) , i want to use a user-defined RotMatrix rot , not pi*x .

[image] JeffreySarnoff: tfm = recenter(RotMatrix(-pi/2), center(img)) i want use a user-defined RotMatrix, such as rot . i dont kown how to use a 3*3 matix .

tfm = recenter(RotMatrix(-pi/2), center(img)) i want to use a user-defined RotMatrix such as rot . i dont kown how to use a 3*3 RotMatrix …

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Your 3x3 matrix rot is not a Rotation Matrix, it is matrix that is 3x3. A 3x3 Rotation Matrix is appropriate for use when rotating something in a 3 dimensional coordinate system. When working with images [flat pictures], a rotation is a transformation that rotates the image within the plane that …

One way you can tell your matrix isn’t a rotation is that entry with value 23.244938; for any rotation matrix, all the entries will have absolute value <= 1, and both rows and columns will have a sum-of-squares equal to 1. In particular, if U is a rotation matrix then U'*U == U*U' == I where I is th…

[image] zsz00: I want to rotate a image with camara extri parameters matrix. but have error, can you help me amend it ? please!!! I would recommend being more precise with your question and/or giving more background when asking in a forum that’s not specialized in your field. Specifically “ca…

Thanks for figuring that out, @GunnarFarneback . @zsz00 , check out the Perspective transformations and see if that fixes your problem.

Rotate a image

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Tero_Frondelius November 16, 2018, 6:02am 8

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Rotate a image

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