Huud’s gists

Huud / "I Can't Sleep" Effect.py

Last active February 26, 2020 14:28

A Python script that takes a B&W image and generates an illusion where lines bending create that image, it's based on a viral image that reads "I Can't Sleep", examples: https://imgur.com/a/1NT0BIe

	from PIL import *
	# from IPython.display import display # uncomment if you are using Jupyter

	im = Image.open(r"C:\Put_your_B&W_img_here.jpg")
	outIm = Image.new('RGB', im.size, color = 'white')
	draw = ImageDraw.Draw(outIm)
	gridSpacing = 5
	lineThickness = int(gridSpacing/2)

	for i in range(0,im.size[0],gridSpacing):

Huud / Generate Normal Map From Height Map.py

Last active May 7, 2024 17:55

Generate Normal Map From Height Map

	# A fast - numpy based - CPU functions that take a height map and generate a normal map from it

	import numpy as np
	import matplotlib.image as mpimg

	# a function that takes a vector - three numbers - and normalize it, i.e make it's length = 1
	def normalizeRGB(vec):
	length = np.sqrt(vec[:,:,0]2 + vec[:,:,1]2 + vec[:,:,2]**2)
	vec[:,:,0] = vec[:,:,0] / length
	vec[:,:,1] = vec[:,:,1] / length

Huud / Recompiler_Vs_Interpreter.cpp

Created July 19, 2020 13:34

An esample code that generates C++ code and compiles it to a DLL file then uses it.

	#define _CRT_SECURE_NO_WARNINGS

	#include <iostream>
	#include <fstream>
	#include <random>
	#include <cmath>
	#include <string>
	#include <chrono>
	#include <vector>
	#include <windows.h>

Huud / Calculate_Mean_and_std_of_dataset.py

Created July 23, 2020 14:18

How to calculate the mean and standard deviation of an image dataset

	# calculate mean and std deviation

	from pathlib import Path
	import cv2

	imageFilesDir = Path(r'C:\your\dataset\dir\here\trainData')
	files = list(imageFilesDir.rglob('*.png'))

	# Since the std can't be calculated by simply finding it for each image and averaging like
	# the mean can be, to get the std we first calculate the overall mean in a first run then