Crop to template boundaries and pad — crop_tem • webmorphR

Calculate the maximum and minimum x and y coordinates across the stimuli (or for each stimulus) and crop all image to this plus padding.

Usage

crop_tem(
  stimuli,
  top = 10,
  right = top,
  bottom = top,
  left = right,
  each = FALSE,
  ...
)

Arguments

stimuli: list of stimuli
top, right, bottom, left: numeric; number of pixels or proportion (<1) to pad each side
each: logical; Whether to calculate bounds for the full set (default) or each image separately
...: additional arguments to pass to crop()

Value

list of stimuli

See also

Stimulus manipulation functions align(), crop(), greyscale(), horiz_eyes(), image_func(), mask_oval(), mask(), mirror(), pad(), resize(), rotate(), to_size()

Examples

stimuli <- demo_stim()
ctem <- crop_tem(stimuli, each = TRUE)
draw_tem(ctem)


# \donttest{
# demo with different templates
stimuli <- demo_tems()

# default 10 pixels around maximum template
crop_tem(stimuli) 


# crop specific to each image
crop_tem(stimuli, each = TRUE)

# }