Daily Dev Tips
Hello! OpenCV is widely used in image processing and video analysis. When working with video processing in production, however, you may occasionally run into an error like the following. cv2.error: OpenCV(4.11.0) /io/opencv/modules/imgcodecs/src/loadsave.cpp:929: error: (-215:Assertion failed) !_img.empty() in
Daily Dev Tips
Hello! Today's topic is the "closure problem." Have you ever defined a function inside a loop in Python? If so, you may have run into some rather puzzling behavior. In this article, we explain the "closure problem" — something every Python programmer runs into at
LLM
Hello! OpenAI's vision-capable models (that is, LLMs that accept image input) use two different methods for converting images into tokens. The latest GPT-5 and GPT-4.1 families introduced a patch-based method that differs from the traditional tile-based approach. This change significantly improves the efficiency of image processing and
Daily Dev Tips
Hello! This is the Qualiteg Product Development team! This is the story of how simply converting a synchronous method into an asynchronous one (async) hit us with an unexpected memory leak*. It happened while we were developing a video processing system that uses deep learning models. We had a requirement
LLM Security
Hello! Today we look at data loss prevention in the AI era — with a particular focus on the communications technology involved — and discuss how organizations should approach AI security. 1. Introduction With the rapid spread of generative AI, corporate data governance has entered a new phase. Large language models (LLMs)
Daily Dev Tips
Hello! The other day, while building a Python application that uses dlib (running in a conda environment), I ran into the following error. ImportError: /home/mlu/anaconda3/envs/example_env/bin/../lib/libstdc++.so.6: version `GLIBCXX_3.4.32' not found (required by /home/mlu/anaconda3/envs/example_
NumPy/PyTorch
Hello! Today, let's take a look at analyzing and dealing with segmentation faults in services that combine virtualized environments with GPUs. What a Segmentation Fault Really Is A segmentation fault is an exception raised by the OS when a program attempts to access a protected region of memory.
Daily Dev Tips
Hello! Today's topic is the conda command, a tool many of us rely on every day. Here are some tips for shell scripts and batch tasks that enter a conda virtual environment, run some processing, and then return. In AI development, Anaconda and its core conda package manager
Daily Dev Tips
Hello! Today we are talking about Node.js, which we often use as the front-end server for AI systems. With the spread of AI models, we increasingly find ourselves handling very large data files. Model files for LLMs and training datasets can reach several gigabytes—sometimes tens or even hundreds
LLM
Hello! When you use Gemini 2.5 Pro and Gemini 2.5 Flash, accurately tracking token counts is critical for cost calculation and context window management. In this article, we take a detailed look at how tokens are calculated for multimodal content: images, video, and audio. Basic Concept: What Is
Daily Dev Tips
Hello! This time, we ran into a puzzling problem while using a conda environment on WSL from PyCharm: the package lists did not match even though it was supposedly the same environment. In this article, we look at the cause and how to fix it. The Situation Our development flow
Blog
Hello! Today we take a close look at MCP, one of the most talked-about technologies right now! Introduction "I get that AI is useful, but letting it access my own data or work with other applications sounds difficult..." Many people probably share this concern. Indeed, conventional AI faced
IT & AI Technology
Maximum Supported Users Calculator Calculates the maximum number of users supported by a GPU conversion server that can process only one job at a time Processing time (t_p) min/job Time required for one conversion job Target system utilization (ρ) 0 to 1 Target utilization for stable operation (recommended:
Daily Dev Tips
Hello! Windows Subsystem for Linux (WSL2) is a wonderful feature that lets you run a Linux environment on Windows, but some users run into DNS resolution problems. This article covers the symptoms and an effective way to fix them. Test Environment The method described in this article was verified with
NumPy/PyTorch
Hello! Today's topic: just because an attractive PyTorch checkpoint is being handed around does not mean you should innocently use it — doing so can be seriously dangerous. Have you ever thought about the security risks of loading a model checkpoint? A checkpoint you assumed was just a model
Daily Dev Tips
This is an issue I have run into a few times after repeatedly installing and removing various versions of Linux on WSL. Encountered errors while loading user settings Found a profile with an invalid "icon". Defaulting that profile to have no icon. Make sure when setting an "