# Skin Correction Disappearing Issue Guide

### 1.Overview of the Issue <a href="#prismlensblog-skincorrection-1.overviewoftheissue" id="prismlensblog-skincorrection-1.overviewoftheissue"></a>

In some user environments, the **“Face Effect > Skin”** correction feature in Prism Lens may intermittently deactivate or become unstable during use.

<div align="left"><figure><img src="/files/1lDvmWSFUfTRYLfaZ9YG" alt="" width="264"><figcaption></figcaption></figure></div>

* This occurs mainly among users with **bright skin tones** or when using **strong white lighting** conditions.
* The issue appears as the skin correction effect being properly applied at first,\
  but suddenly disappearing or becoming inconsistent after a certain period.
* It can also occur after **minor facial movements** such as smiling or turning the head, even if the video scene itself is relatively static (e.g. game screen not changing).

***

### 2.Cause <a href="#prismlensblog-skincorrection-2.cause" id="prismlensblog-skincorrection-2.cause"></a>

The **Skin Correction** function in Prism Lens uses a **color-based skin detection algorithm** that identifies and smooths skin tones in real time.\
The current version of this algorithm is optimized for **medium (yellowish) skin tones**, and thus may have the following limitations under certain conditions:

* Skin areas that are too bright may not be recognized properly, causing the correction effect to be disabled intermittently.
* Under strong or high color-temperature lighting (especially white or cool blue lights), the accuracy of skin tone detection may decrease.
* Subtle facial expressions or head movements may momentarily move the detected skin region out of range, temporarily disabling the effect.

As a result, this phenomenon may occur during live streaming even when the lighting and camera remain unchanged.\
It tends to appear more frequently under **bright lighting** or **static screen conditions**.

***

### 3.Temporary Workarounds and Recommendations <a href="#prismlensblog-skincorrection-3.temporaryworkaroundsandrecommendations" id="prismlensblog-skincorrection-3.temporaryworkaroundsandrecommendations"></a>

Until the algorithm update is released, the following methods can help mitigate or reduce the issue:

**(1) Optimize Lighting Environment**

* Use **warm-tone lighting** to improve detection accuracy and maintain a stable correction effect.
* Avoid using **strong white** or **cool blue** lights, as they can cause recognition errors.
* Adjust lighting so that there is not a large brightness difference between your face and background.

**(2) Utilize Makeup Effects**

* The **Makeup Effect** uses a separate correction algorithm that performs more stably even with bright skin tones.
* Enabling the makeup effect helps maintain a natural skin appearance even if the primary correction effect temporarily deactivates.

<div align="left"><figure><img src="/files/WnTm27XXIsNPRZfhN4wE" alt="" width="260"><figcaption></figcaption></figure></div>

**(3) Use Advanced Correction Features**

* Combining individual correction options such as '**Dark Circle Reduction'** and '**Nasolabial Fold Reduction'** can enhance the overall skin texture.
* These features operate independently of the skin correction function, maintaining consistency even when the correction effect becomes unstable.

<img src="/files/vWX9O8Uvs4lKfDooAJoZ" alt="" data-size="original">

***

### &#x20;4.Future Improvements <a href="#prismlensblog-skincorrection-4.futureimprovements" id="prismlensblog-skincorrection-4.futureimprovements"></a>

The Prism development team is currently researching and testing a **new skin correction algorithm** designed to operate more reliably across various **skin tones and lighting conditions**.

The new algorithm aims to achieve the following improvements:

* Expanded skin tone recognition range
* Automatic lighting environment adjustment
* Enhanced real-time facial expression tracking and response

After internal quality verification, these improvements will be implemented through future Prism Lens updates.

***

### 5.Additional Notes <a href="#prismlensblog-skincorrection-5.additionalnotes" id="prismlensblog-skincorrection-5.additionalnotes"></a>

The Prism team is continuously working to minimize visual inconsistencies across different user environments\
and to ensure a natural and consistent skin correction experience for all users.

Further details on these improvements will be shared in upcoming update notes.

<br>


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