Upload Image Sequence

#!/bin/bash

# Parameters
max_frames=512    # maximum number of frames to extract
max_pixel_size=32 # output resolution (max 32)
frame_interval=5  # extract every nth frame
stretch=false     # stretch frames to square
center_crop=true  # crop to the center square of the video

if [ -z "$1" ]; then
    echo "Usage: $0 "
    exit 1
fi

input_file="$1"
base_name=$(basename "$input_file" | sed 's/\.[^.]*$//')
output_dir="$base_name"

mkdir -p "$output_dir"

if [ "$center_crop" = true ]; then
    scale_option="crop=min(iw\,ih):min(iw\,ih),scale=${max_pixel_size}:${max_pixel_size}"
elif [ "$stretch" = true ]; then
    scale_option="scale=${max_pixel_size}:${max_pixel_size}"
else
    scale_option="scale=${max_pixel_size}:${max_pixel_size}:force_original_aspect_ratio=decrease,pad=${max_pixel_size}:${max_pixel_size}:-1:-1:black"
fi

ffmpeg -i "$input_file" -vf "select='not(mod(n\,${frame_interval}))',$scale_option" -vsync vfr -frames:v ${max_frames} "$output_dir/frame_%03d.png"

echo "Conversion complete. PNG frames are stored in the '$output_dir' directory."

import sys
import os
from PIL import Image

def convert_to_frames(input_path):
    img = Image.open(input_path)

    base_name = os.path.splitext(os.path.basename(input_path))[0]
    output_dir = base_name
    if not os.path.exists(output_dir):
        os.makedirs(output_dir)
    
    frame_num = 0
    try:
        while True:
            frame_name = f"frame_{frame_num:03d}.png"
            frame_path = os.path.join(output_dir, frame_name)
            frame = img.copy()
            
            if frame.width > 32:
                new_height = int((32 / frame.width) * frame.height)
                frame = frame.resize((32, new_height), Image.NEAREST)
            
            frame.save(frame_path, "PNG")
            
            frame_num += 1
            img.seek(img.tell() + 1)
    except EOFError:
        pass

if __name__ == "__main__":
    if len(sys.argv) < 2:
        print("Usage: python script.py ")
        sys.exit(1)

    input_file_path = sys.argv[1]
    convert_to_frames(input_file_path)