pad | R Documentation |
Add padding to sides of stimuli. This is a convenience function to calculate offsets for crop()
.
pad(stimuli, top = 10, right = top, bottom = top, left = right, ...)
stimuli |
list of stimuli |
top, right, bottom, left |
number of pixels or proportion (<1) to pad each side |
... |
additional arguments to pass to |
The value for top is copied to bottom and right, and the value for right is copied to left, so setting only top produces a consistent border, while setting just top and right sets different borders for top-bottom and right-left. (This convention will be familiar if you use CSS.)
Padding size values are interpreted as a proportion of width or height if less than 1.
list of stimuli
Stimulus manipulation functions
align()
,
crop_tem()
,
crop()
,
greyscale()
,
horiz_eyes()
,
image_func()
,
mask_oval()
,
mask()
,
mirror()
,
resize()
,
rotate()
,
to_size()
stimuli <- demo_stim() # default 10-pixel padding pad(stimuli, fill = "dodgerblue") # change pad width and set fill pad(stimuli, 2, fill = "dodgerblue") # set top border to 10% height # different colour for each image pad(stimuli, 0.1, 1, 1, 1, fill = c("hotpink", "dodgerblue"))
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