2D color image inconsistency after updating Zivid SDK

Problem

Zivid 카메라는 동일한 2D 색상 설정을 사용하여 Zivid SDK를 업데이트한 후 다른 색상 이미지를 출력합니다.

Possible cause

For Zivid 2, updating from SDK 2.7 or earlier to SDK 2.8-2.10

The color balance calculation for Zivid 2 was updated in SDK 2.8 and remained unchanged through SDK 2.10. This means that the color values for a given pixel may differ after updating from SDK 2.7 or earlier to any of SDK 2.8, 2.9, or 2.10. There is only an inconsistency if the Color Balance values are larger than 1. The difference is more pronounced for higher gain values. The images below illustrate the inconsistency between SDK 2.7 and SDK 2.8.

For all cameras, updating from SDK 2.10 or earlier to SDK 2.11 or later

Starting with SDK 2.11, Zivid Studio represents colors in sRGB, instead of linear RGB. The histogram and the RGB color channel values for a given pixel are still displayed in linear color space. The image below shows the same image represented in sRGB and linear RGB.

모니터는 일반적으로 sRGB 공간의 이미지를 예상하며, 이미지를 디스플레이용으로 해석하기 전에 역감마 보정을 수행합니다. 자세한 내용은 2D Color Spaces, Lens Distortion, and Output Formats 을 참조하세요.

Solution

The SDK 2.11-or-later sRGB change is expected, correct behavior and needs no fix. For the SDK 2.8-2.10 color balance change, if the color balance is wrong, re-tune the color balance gain values either manually or by following our Adjusting Color Balance guide.