store_raw_image.gd

extends Node

func _ready():
	var img = ImageTexture.new()
	img.load("res://image.png")
	var img_data = img.get_data()
	var raw_data = img_data.get_data()
	save(raw_data)

func save(content):
	var file = File.new()
	file.open("res://image_file.dat", file.WRITE)
	file.store_buffer(content)
	file.close()

#V2

extends Node

func _ready():
	var img_tex = ImageTexture.new()
	img_tex.load("res://image.png")
	var img = img_tex.get_data().compressed()
	var raw_data = img.get_data()
	save(raw_data)

func save(content):
	var file = File.new()
	file.open("res://image_file.dat", file.WRITE)
	file.store_buffer(content)
	file.close()