webbpsf_ext.image_manip

Functions

add_ipc(im[, alpha_min, alpha_max, kernel])	Convolve image with IPC kernel
add_ppc(im[, ppc_frac, nchans, kernel, ...])	Add Post-Pixel Coupling (PPC)
apply_pixel_diffusion(im, pixel_sigma)	Apply charge diffusion kernel to image
bp_fix(im[, sigclip, niter, pix_shift, ...])	Find and fix bad pixels in image with median of surrounding values
convolve_image(hdul_sci_image, hdul_psfs[, ...])	Convolve image with various PSFs
crop_image(imarr, xysub[, xyloc])	Crop input image around center using integer offsets only
crop_observation(im_full, ap, xysub[, ...])	Crop around aperture reference location
crop_zero_rows_cols(image[, symmetric, ...])	Crop off rows and columns that are all zeros.
cv_shift(image, xshift, yshift[, pad, cval, ...])	Use OpenCV library for image shifting
distort_image(hdulist_or_filename[, ext, ...])	Distort an image
expand_mask(bpmask, npix[, grow_diagonal])	Expand bad pixel mask by npix pixels
fourier_imshift(image, xshift, yshift[, ...])	Fourier shift image
fractional_image_shift(imarr, xshift, yshift)	Shift image(s) by a fractional amount
frebin(image[, dimensions, scale, total])	Fractional rebin
fshift(inarr[, delx, dely, pad, cval, interp])	Fractional image shift
get_im_cen(im)	Returns pixel position (xcen, ycen) of array center.
image_convolution(image, psf[, method, use_fft])	Perform image convolution with a PSF kernel
image_rescale(HDUlist_or_filename, pixscale_out)	Rescale image flux
image_shift_with_nans(image, xshift, yshift)	Shift image by a fractional amount accounting for NaNs
make_disk_image(inst, disk_params[, ...])	Rescale disk model flux to desired pixel scale and distance.
model_to_hdulist(args_model, sp_star, bandpass)	HDUList from model FITS file.
pad_or_cut_to_size(array, new_shape[, ...])	Resize an array to a new shape by either padding with zeros or trimming off rows and/or columns.
replace_nans(image[, mean_func, in_place, ...])	Replace NaNs in an image with interpolated values
replace_nans_griddata(image[, method, in_place])	Replace NaNs in an image using griddata interpolation
rotate_offset(data, angle[, cen, cval, ...])	Rotate and offset an array.
rotate_shift_image(hdul[, index, angle, ...])	Rotate/Shift image
zrebin(image, oversample[, order, mode, ...])	Rebin image using scipy.ndimage.zoom