Machine Learning
Real Machine Learning โ simple, practical, and built on experience. Learn step by step with clear explanations and working code. Admin: @HusseinSheikho || @Hussein_Sheikho
Show more๐ Analytical overview of Telegram channel Machine Learning
Channel Machine Learning (@machinelearning9) in the English language segment is an active participant. Currently, the community unites 40 145 subscribers, ranking 3 364 in the Technologies & Applications category and 227 in the Syria region.
๐ Audience metrics and dynamics
Since its creation on ะฝะตะฒัะดะพะผะพ, the project has demonstrated rapid growth, gathering an audience of 40 145 subscribers.
According to the latest data from 27 June, 2026, the channel demonstrates stable activity. Although there has been a change in the number of participants by 412 over the last 30 days and by 5 over the last 24 hours, overall reach remains high.
- Verification status: Not verified
- Engagement rate (ER): The average audience engagement rate is 1.96%. Within the first 24 hours after publication, content typically collects 1.89% reactions from the total number of subscribers.
- Post reach: On average, each post receives 785 views. Within the first day, a publication typically gains 760 views.
- Reactions and interaction: The audience actively supports content: the average number of reactions per post is 2.
- Thematic interests: Content is focused on key topics such as distance, insidead, gpu, learning, degree.
๐ Description and content policy
The author describes the resource as a platform for expressing subjective opinions:
โReal Machine Learning โ simple, practical, and built on experience.
Learn step by step with clear explanations and working code.
Admin: @HusseinSheikho || @Hussein_Sheikhoโ
Thanks to the high frequency of updates (latest data received on 28 June, 2026), the channel maintains relevance and a high level of publication reach. Analytics show that the audience actively interacts with content, making it an important point of influence in the Technologies & Applications category.
# Basic Bot Setup - The foundation (PTB v20+ Async)
from telegram.ext import Application, CommandHandler, MessageHandler, filters
async def start(update, context):
await update.message.reply_text(
"โจ AI Image Bot Active!\n"
"/generate - Create images from text\n"
"/enhance - Improve photo quality\n"
"/help - Full command list"
)
app = Application.builder().token("YOUR_BOT_TOKEN").build()
app.add_handler(CommandHandler("start", start))
app.run_polling()
Learn more: https://hackmd.io/@husseinsheikho/building-AI-powered-Telegram-bots# Real-World Case Study: E-commerce Product Pipeline
import boto3
from PIL import Image
import io
def process_product_image(s3_bucket, s3_key):
# 1. Download from S3
s3 = boto3.client('s3')
response = s3.get_object(Bucket=s3_bucket, Key=s3_key)
img = Image.open(io.BytesIO(response['Body'].read()))
# 2. Standardize dimensions
img = img.convert("RGB")
img = img.resize((1200, 1200), Image.LANCZOS)
# 3. Remove background (simplified)
# In practice: use rembg or AWS Rekognition
img = remove_background(img)
# 4. Generate variants
variants = {
"web": img.resize((800, 800)),
"mobile": img.resize((400, 400)),
"thumbnail": img.resize((100, 100))
}
# 5. Upload to CDN
for name, variant in variants.items():
buffer = io.BytesIO()
variant.save(buffer, "JPEG", quality=95)
s3.upload_fileobj(
buffer,
"cdn-bucket",
f"products/{s3_key.split('/')[-1].split('.')[0]}_{name}.jpg",
ExtraArgs={'ContentType': 'image/jpeg', 'CacheControl': 'max-age=31536000'}
)
# 6. Generate WebP version
webp_buffer = io.BytesIO()
img.save(webp_buffer, "WEBP", quality=85)
s3.upload_fileobj(webp_buffer, "cdn-bucket", f"products/{s3_key.split('/')[-1].split('.')[0]}.webp")
process_product_image("user-uploads", "products/summer_dress.jpg")
By: @DataScienceM ๐
#Python #ImageProcessing #ComputerVision #Pillow #OpenCV #MachineLearning #CodingInterview #DataScience #Programming #TechJobs #DeveloperTips #AI #DeepLearning #CloudComputing #Docker #BackendDevelopment #SoftwareEngineering #CareerGrowth #TechTips #Python3# OCR Processing - Text extraction
import pytesseract
from PIL import Image
# Configure Tesseract path (if needed)
# pytesseract.pytesseract.tesseract_cmd = '/usr/bin/tesseract'
img = Image.open("document.jpg")
text = pytesseract.image_to_string(img, lang='eng')
print(text[:200]) # First 200 characters
# Get bounding boxes for text
data = pytesseract.image_to_data(img, output_type=pytesseract.Output.DICT)
for i, word in enumerate(data['text']):
if word:
x, y, w, h = data['left'][i], data['top'][i], data['width'][i], data['height'][i]
print(f"Word: {word} | Position: ({x},{y}) Size: {w}x{h}")
# Generative Art - Creative application
from PIL import Image, ImageDraw
import random
img = Image.new('RGB', (800, 800), (255, 255, 255))
draw = ImageDraw.Draw(img)
# Generate random geometric pattern
for _ in range(1000):
x1, y1 = random.randint(0, 800), random.randint(0, 800)
x2, y2 = x1 + random.randint(-100, 100), y1 + random.randint(-100, 100)
color = (random.randint(0, 255), random.randint(0, 255), random.randint(0, 255))
draw.line([x1, y1, x2, y2], fill=color, width=random.randint(1, 5))
img.save("generative_art.jpg")
# Image Steganography - Security technique
def hide_message(image_path, message, output_path):
img = Image.open(image_path)
binary_message = ''.join(format(ord(c), '08b') for c in message) + '1111111111111110'
pixels = list(img.getdata())
new_pixels = []
bit_index = 0
for pixel in pixels:
if bit_index < len(binary_message):
r, g, b = pixel[:3]
r = (r & ~1) | int(binary_message[bit_index])
bit_index += 1
new_pixels.append((r, g, b))
else:
new_pixels.append(pixel)
img.putdata(new_pixels)
img.save(output_path)
hide_message("cover.jpg", "Secret message", "stego.png")
# Interview Power Move: Custom Filter Implementation
import numpy as np
from PIL import Image
def apply_sepia(img):
# Convert to numpy array
img_array = np.array(img)
# Sepia matrix (BT.709 coefficients)
sepia_matrix = np.array([
[0.393, 0.769, 0.189],
[0.349, 0.686, 0.168],
[0.272, 0.534, 0.131]
])
# Apply matrix multiplication
sepia_array = img_array @ sepia_matrix.T
sepia_array = np.clip(sepia_array, 0, 255).astype(np.uint8)
return Image.fromarray(sepia_array)
sepia_img = apply_sepia(Image.open("input.jpg"))
sepia_img.save("sepia.jpg")
# Pro Tip: Memory-Mapped Processing for Gigapixel Images
import numpy as np
from PIL import Image
def process_gigapixel(image_path):
# Create memory-mapped array
img = Image.open(image_path)
mmap_file = np.memmap('temp.mmap', dtype='uint8', mode='w+', shape=img.size[::-1] + (3,))
# Process in chunks
chunk_size = (1000, 1000)
for y in range(0, img.height, chunk_size[1]):
for x in range(0, img.width, chunk_size[0]):
box = (x, y, min(x+chunk_size[0], img.width), min(y+chunk_size[1], img.height))
chunk = np.array(img.crop(box))
mmap_file[y:box[3], x:box[2]] = chunk
# Process entire image in memory-mapped array
mmap_file = np.where(mmap_file > 128, 255, 0) # Binarize
Image.fromarray(mmap_file).save("processed.jpg")
process_gigapixel("gigapixel.tiff")# Memory Optimization - Handle large images
from PIL import Image
# Process without loading entire image
with Image.open("huge_image.tiff") as img:
# Work with tiles
for i, (x, y, w, h) in enumerate(img.tile):
tile = img.crop((x, y, x+w, y+h))
# Process tile
processed_tile = tile.filter(ImageFilter.SHARPEN)
# Paste back
img.paste(processed_tile, (x, y))
img.save("optimized.tiff")
# Async Processing - Modern Python requirement
import asyncio
from PIL import Image
async def process_image_async(filename):
loop = asyncio.get_running_loop()
return await loop.run_in_executor(
None,
lambda: Image.open(filename).resize((500, 500)).save(f"thumb_{filename}")
)
async def main():
tasks = [process_image_async(f) for f in ["img1.jpg", "img2.jpg", "img3.jpg"]]
await asyncio.gather(*tasks)
asyncio.run(main())
# Cloud Integration - Production pipeline
from google.cloud import storage
from PIL import Image
import io
def process_gcs_image(bucket_name, source_blob, destination_blob):
storage_client = storage.Client()
bucket = storage_client.bucket(bucket_name)
# Download from GCS
blob = bucket.blob(source_blob)
img_data = blob.download_as_bytes()
img = Image.open(io.BytesIO(img_data))
# Process image
img = img.convert("RGB").resize((1024, 1024))
# Upload back to GCS
buffer = io.BytesIO()
img.save(buffer, "JPEG")
bucket.blob(destination_blob).upload_from_string(
buffer.getvalue(),
content_type="image/jpeg"
)
process_gcs_image("user-photos", "raw/photo.jpg", "processed/photo.jpg")
# Dockerized Service - Deployment pattern
# Dockerfile snippet:
# FROM python:3.10-slim
# RUN pip install pillow opencv-python
# COPY image_service.py /app/
# CMD ["python", "/app/image_service.py"]
# image_service.py
from http.server import HTTPServer, BaseHTTPRequestHandler
from PIL import Image
import io
class ImageHandler(BaseHTTPRequestHandler):
def do_POST(self):
content_len = int(self.headers['Content-Length'])
img_data = self.rfile.read(content_len)
# Process image
img = Image.open(io.BytesIO(img_data))
img = img.resize((800, 800))
# Return processed image
buffer = io.BytesIO()
img.save(buffer, "JPEG")
self.send_response(200)
self.send_header("Content-Type", "image/jpeg")
self.end_headers()
self.wfile.write(buffer.getvalue())
HTTPServer(('', 8000), ImageHandler).serve_forever()
# Performance Benchmarking - Optimization proof
import time
from PIL import Image
# Compare resize methods
start = time.time()
for _ in range(100):
Image.open("input.jpg").resize((500, 500), Image.LANCZOS)
lanczos_time = time.time() - start
start = time.time()
for _ in range(100):
Image.open("input.jpg").resize((500, 500), Image.NEAREST)
nearest_time = time.time() - start
print(f"LANCZOS: {lanczos_time:.2f}s | NEAREST: {nearest_time:.2f}s")
# Output: LANCZOS: 4.20s | NEAREST: 1.80s (Quality vs Speed tradeoff)
# Image Hashing - Deduplication solution
import imagehash
from PIL import Image
def find_duplicates(image_dir, threshold=5):
hashes = {}
for filename in os.listdir(image_dir):
img = Image.open(os.path.join(image_dir, filename))
img_hash = imagehash.phash(img)
# Find similar images
for existing_hash, files in hashes.items():
if img_hash - existing_hash < threshold:
files.append(filename)
break
else:
hashes[img_hash] = [filename]
return [files for files in hashes.values() if len(files) > 1]
duplicates = find_duplicates("user_uploads")# PIL/Pillow Basics - The essential image library
from PIL import Image
# Open and display image
img = Image.open("input.jpg")
img.show()
# Convert formats
img.save("output.png")
img.convert("L").save("grayscale.jpg") # RGB to grayscale
# Basic transformations
img.rotate(90).save("rotated.jpg")
img.resize((300, 300)).save("resized.jpg")
img.transpose(Image.FLIP_LEFT_RIGHT).save("mirrored.jpg")
# Advanced Manipulation - Professional editing
from PIL import ImageEnhance, ImageFilter
# Adjust brightness/contrast
enhancer = ImageEnhance.Brightness(img)
bright_img = enhancer.enhance(1.5) # 50% brighter
# Apply filters
blurred = img.filter(ImageFilter.BLUR)
sharpened = img.filter(ImageFilter.SHARPEN)
edges = img.filter(ImageFilter.FIND_EDGES)
# Color manipulation
color_enhancer = ImageEnhance.Color(img)
color_enhancer.enhance(2.0).save("vibrant.jpg") # Double saturation
# OpenCV Integration - Computer vision powerhouse
import cv2
import numpy as np
# Read and convert color spaces
cv_img = cv2.imread("input.jpg")
rgb_img = cv2.cvtColor(cv_img, cv2.COLOR_BGR2RGB)
hsv_img = cv2.cvtColor(cv_img, cv2.COLOR_BGR2HSV)
# Edge detection (Canny algorithm)
edges = cv2.Canny(cv_img, 100, 200)
cv2.imwrite("edges.jpg", edges)
# Face detection (interview favorite)
face_cascade = cv2.CascadeClassifier(cv2.data.haarcascades + 'haarcascade_frontalface_default.xml')
faces = face_cascade.detectMultiScale(rgb_img, 1.3, 5)
for (x, y, w, h) in faces:
cv2.rectangle(cv_img, (x, y), (x+w, y+h), (255, 0, 0), 2)
cv2.imwrite("faces.jpg", cv_img)
# Batch Processing - Production automation
import os
from PIL import Image
def process_images(input_dir, output_dir):
os.makedirs(output_dir, exist_ok=True)
for filename in os.listdir(input_dir):
if filename.lower().endswith(('.png', '.jpg', '.jpeg')):
with Image.open(os.path.join(input_dir, filename)) as img:
# Resize while maintaining aspect ratio
img.thumbnail((800, 800))
# Apply watermark
watermark = Image.open("watermark.png")
img.paste(watermark, (img.width - watermark.width, img.height - watermark.height), watermark)
img.save(os.path.join(output_dir, filename))
process_images("raw_photos", "processed")
# Image Augmentation - Deep learning preparation
from torchvision import transforms
transform = transforms.Compose([
transforms.RandomHorizontalFlip(),
transforms.ColorJitter(brightness=0.2, contrast=0.2),
transforms.RandomRotation(15),
transforms.Resize((224, 224)),
transforms.ToTensor()
])
# Apply to dataset
augmented_img = transform(img)
# EXIF Data Handling - Privacy/security critical
from PIL import Image
img = Image.open("photo_with_gps.jpg")
# Strip metadata (security interview question)
data = list(img.getdata())
clean_img = Image.new(img.mode, img.size)
clean_img.putdata(data)
clean_img.save("clean.jpg", "JPEG", exif=b"")
# Read specific metadata
exif = img.getexif()
if 36867 in exif: # DateTimeOriginal
print(exif[36867])
# Image Segmentation - Advanced computer vision
import numpy as np
import cv2
img = cv2.imread('input.jpg')
gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
_, thresh = cv2.threshold(gray, 180, 255, cv2.THRESH_BINARY_INV)
# Morphological operations
kernel = np.ones((2,2), np.uint8)
dilated = cv2.dilate(thresh, kernel, iterations=1)
# Find contours
contours, _ = cv2.findContours(dilated, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)
for cnt in contours:
area = cv2.contourArea(cnt)
if area > 100: # Filter small contours
x, y, w, h = cv2.boundingRect(cnt)
cv2.rectangle(img, (x, y), (x+w, y+h), (0, 255, 0), 2)
cv2.imwrite("segmented.jpg", img)
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