convert polar image to cartesian image

hi I would convert image in polar coordinates to cartesian coordinates i have tested severals functions existing in file exchange such as polar to Im and polar 2 image but always i found artifacts in cartesian image. i would have cartesian image which is very similar to initial image. I would be very gratefull if you can help me thanks

[Jan]

Please explain, what inputs you have, which tools you have used and what kind of artifacts you mean. Mentioning only, that there is a problem does not allow to improve the solution.

[Image Analyst]

Because of digitizations, not every Cartesian location will have a corresponding element in the polar array so you may have holes (unassigned locations) if you don't do the transformation correctly. You have to "pull" over the correct value to the Cartesian image rather than "send" the polar value over.

[dhikra H]

Thanks very much for your answers Yes it is clear that the descritization of polar parameters can change the result According to the answer of mr Image Analyst I tried to test the modification of polar values and I think it is difficult to have a perfect cartesian image