PNG Signature: The first eight bytes (89 50 4E 47 0D 0A 1A 0A) are the signature of a PNG file, indicating that the file is indeed a PNG image.
IHDR Chunk: The next part (49 48 44 52) represents the IHDR chunk, which contains important information about the image, such as its width, height, bit depth, and color type.
IDAT Chunk: The 49 44 41 54 sequence marks the beginning of the IDAT chunk, which contains the actual image data compressed using the DEFLATE algorithm.
pHYs Chunk: The 70 48 59 73 sequence indicates the pHYs chunk, which specifies the pixel dimensions and aspect ratio of the image. Multi Storey Car Parking 3D