Shift Camera During Time-Lapse

Well, I didn't have the patience to figure it out. Here is my perl version of it, noting that the input and output sizes are identical, that I am cropping off from the left, and appending the side to the right:

my $mask = $COMP_DIR . '\\' . "overlap_mask.png";

my $width_side = 1244;

my $chop = 980;

my $overlap = 264;

my $width_r_m_overlap = $width_side - $overlap;

my $width_l_m_overlap = $width - $chop - $overlap;

# the 68 was due to a vertical discrepancy between left and right images....

$result = `convert -size ${height}x${width_r_m_overlap} xc:white -size ${height}x${overlap} gradient: -size ${height}x${width_l_m_overlap} xc:black -append -rotate 90 $mask`;

# mask done, now crop on the left, use the mask

$result = `convert $pic_one -crop ${crop_ini}x${height_m_bot}+${chop}+68 $pic_inter`; # +repage $pic_BOT -append

$result = `convert $pic_inter $pic_BOT -append $pic_two`;

$result = `convert $pic_two -size ${width_r_m_overlap}x${height} xc:black +append $pic_four`;

$result = `convert $pic_four $pic_three $mask -gravity East -composite $pic_five`;

Here's the final result, and you have to look really hard to see the join.