[APTips 020] デジタル現像（DDP） 天体写真の画像処理に「いま使うツール」としての評価 [miscellaneous編]

Anyone who processes digital astrophotography has likely heard the term digital photo development (DDP). It's a process developed by a Japanese person, and is still widely used, especially in Japan, but globally it's considered "outdated" and is rarely used anymore. In this article, I'd like to explain the main properties of DDP and offer my own interpretation of why it's considered "outdated." I recommend this article for everyone, from beginners to advanced photographers. ■The main contents of this video are as follows: 0:00 Introduction 3:13 DDP Conversion Function 4:50 Three Functional Features 6:15 Evaluation ①: Ability to Prevent Star Enlargement - Evaluation Method 7:36 DDP vs. ArcsinhStretch 14:52 Evaluation ①: Ability to Prevent Star Enlargement - Evaluation Results 16:36 Relationship between DDP, MTF, and MaskedStretch 19:00 Evaluation ②: About Color Enhancement 22:19 Evaluation ③: About Edge Effect 24:45 Summary #Astrophotography #ImageProcessing #DigitalDevelopment ■Related Videos "[APTips 010-1/ PixInsight Edition] Stretch Part 1: General Overview"    • [APTips 010-1/ PixInsight編] Stretch（ストレッチ）...   "[APTips 010-2/ PixInsight Edition] Stretch Part 2: Specifics - 1 Masked Stretch"    • [APTips 010-2/ PixInsight編] Stretch（ストレッチ）...   [APTips 010-4/ PixInsight Edition] Stretch Part 4, Specifics-3: ArcsinhStretch: Stretching with Color Preservation"    • [APTips 010-4/ PixInsight編] Stretch（ストレッチ）...   BGM: DOVA-SYNDROME