#!/bin/bash
 
# Digital camera thumbnail/contact sheet tool.
# http://www.velvetcache.org/2009/03/30/imagemagick-thumbnails-and-contact-sheets
# http://github.com/jmhobbs/helper-scripts
#
# Copyright (c) 2009-2010 John Hobbs
#
# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this software and associated documentation
# files (the "Software"), to deal in the Software without
# restriction, including without limitation the rights to use,
# copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following
# conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
# OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
# OTHER DEALINGS IN THE SOFTWARE.
 
# CHANGELOG
# 2010-06-14 - Fixed contact sheet problem, thanks to Glenn Turnbull. (John Hobbs)
# 2009-03-30 - Created script. (John Hobbs)
 
### SETTINGS ###
 
# Scaling Methods:
# resize (Best/Slow)
# scale (Middle/Middle)
# sample (Worst/Fast)
METHOD="sample"
 
# Thumbnail Size
THUMBSIZE="600x600"
# Thumbnail Directory
THUMBDIR="thumb"
# Thumbnail Quality
THUMBQUALITY="80"
 
# Contact Item Size
CONTACTSIZE="200x200"
# Contact Sheet Max Width
CONTACTWIDTH="3"
# Contact Sheet Max Height
CONTACTHEIGHT="4"
# Horizontal Spacing
CONTACTSPACINGH="3"
# Vertical Spacing
CONTACTSPACINGV="3"
# Contact Sheet Directory
CONTACTDIR="contact"
# Contact Sheet Quality
CONTACTQUALITY="100"
 
################
 
 
CONTACTCOUNT=$(($CONTACTWIDTH * $CONTACTHEIGHT))
PIX=$(ls -l *.jpg | wc -l)
 
echo "Processing $PIX Images"
echo
echo "Creating Thumbnails"
 
mkdir -p $THUMBDIR
CTR=0
echo -n "0%"
for i in *.jpg; do
    echo -ne "\r"
    echo -n "$((100 * $CTR / $PIX))%"
    convert -strip -quality ${THUMBQUALITY} -${METHOD} ${THUMBSIZE} "$i" "${THUMBDIR}/${i}"
    CTR=$(($CTR + 1))
done
 
echo -ne "\r"
echo "100%"
 
echo
echo "Creating Contact Sheets"
 
mkdir -p $CONTACTDIR
CTR=0
PAGES=$(($PIX / $CONTACTCOUNT))
if [ $(($PIX % $CONTACTCOUNT)) -ne 0 ]; then
    PAGES=$(($PAGES + 1))
fi
 
PAGE=1
LIST=""
for i in ${THUMBDIR}/*.jpg; do
    if [ $(($CTR % $CONTACTCOUNT)) -eq 0 ] && [ $CTR -ne 0 ]; then
        echo "$PAGE of $PAGES"
        montage -label %f -quality $CONTACTQUALITY -frame 5 -tile ${CONTACTWIDTH}x${CONTACTHEIGHT} -geometry ${CONTACTSIZE}+${CONTACTSPACINGH}+${CONTACTSPACINGV} $LIST jpg:- > ${CONTACTDIR}/${PAGE}.jpg
        LIST=""
        PAGE=$(($PAGE + 1))
    fi
    LIST="$LIST $i"
    CTR=$(($CTR + 1))
done
 
if [ "" != "$LIST" ]; then
    echo "$PAGE of $PAGES"
    montage -label %f -quality $CONTACTQUALITY -frame 5 -tile ${CONTACTWIDTH}x${CONTACTHEIGHT} -geometry ${CONTACTSIZE}+${CONTACTSPACINGH}+${CONTACTSPACINGV} $LIST jpg:- > ${CONTACTDIR}/${PAGE}.jpg
fi

for(int i = 0; i < frame->height; i++) {
  int offset = i*frame->width*3;
  for(int j = 0; j < frame->width; j++) {
    uchar temp = frame->imageData[offset+(j*3)]*0.114
                    + frame->imageData[offset+(j*3)+1]*0.587
                    + frame->imageData[offset+(j*3)+2]*0.299;
    frame->imageData[offset+(j*3)] = temp;
    frame->imageData[offset+(j*3)+1] = temp;
    frame->imageData[offset+(j*3)+2] = temp;
  }
}

if(0 == memory_frameCounter)
  memory_frames[0] = cvCloneImage(frame);
else if(2 == memory_frameCounter)
  memory_frames[1] = cvCloneImage(frame);
else if(4 == memory_frameCounter)
  memory_frames[2] = cvCloneImage(frame);
else if(6 == memory_frameCounter)
  memory_frames[3] = cvCloneImage(frame);
else if(8 == memory_frameCounter)
  memory_frames[4] = cvCloneImage(frame);
else if(10 <= memory_frameCounter)
  memory_frameCounter = -1;
 
memory_frameCounter++;
 
for(int i = 0; i < frame->height; i++) {
  for(int j =0; j < frame->width*3; j++) {
    memory_agg = frame->imageData[(i*frame->width*3)+j];
    for(int k = 0; k < 5; k++) {
      memory_agg = (memory_agg + memory_frames[k]->imageData[(i*frame->width*3)+j])/2;
    }
    frame->imageData[(i*frame->width*3)+j] = memory_agg;
  }
}

int halfsies = frame->width/2;
for(int i = 0; i < frame->height; i++) {
  int offset = i*frame->width*3;
  for(int j = 0; j < halfsies; j++) {
    frame->imageData[offset+(frame->width*3-1)-2-(j*3)] = frame->imageData[offset+(j*3)];
    frame->imageData[offset+(frame->width*3-1)-1-(j*3)] = frame->imageData[offset+(j*3)+1];
    frame->imageData[offset+(frame->width*3-1)-(j*3)] = frame->imageData[offset+(j*3)+2];
  }
}

int halfFrame = frame->width/2;
int frameBytes = frame->width*3-1;
for(int i = 0; i < frame->height; i++) {
  int offset = i*frame->width*3;
  for(int j = 0; j < halfFrame; j++) {
    int jBytes = offset+frameBytes-(j*3);
    int ojBytes = offset+(j*3);
    frame->imageData[jBytes-2] = frame->imageData[ojBytes];
    frame->imageData[jBytes-1] = frame->imageData[ojBytes+1];
    frame->imageData[jBytes] = frame->imageData[ojBytes+2];
  }
}