My questions concerns resampling methods, which actually interpolate data: bilinear and cubic convolution. I feel a bit confused after reading Envi tutorials regarding these functionalities. Resampling changes the brightness values, yes, but the brightness values in, say, multispectral datasets are calculated from reflectance/data values. I just wanted to make sure that I understand the resampling process right. So in some cases the data values change when we use e.g. cubic convolution resampling, right? And the brightness/intensity values are stretched by using the default 2 % stretching when the new, resampled image is opened? Have I got it right? Thank you in advance for your reply.