Differences

This shows you the differences between two versions of the page.

--- doc:appunti:hardware:sjcam-8pro-custom-firmware [2023/06/09 05:29] – [My Custom firmware] niccolo
+++ doc:appunti:hardware:sjcam-8pro-custom-firmware [2023/06/09 05:38] (current) – [My Custom firmware] niccolo
@@ Line 17: / Line 17: @@
 ===== My Custom firmware =====
-Download the custom firmware here: **{{.:sjcam:sj8pro_mod-rigacci.org_v1.8_20220618.zip|sj8pro_mod-rigacci.org_v1.8_20220618.zip}}**.
+Download the custom firmware here:
+  * **{{.:sjcam:sj8pro_mod-rigacci.org_v1.8_20220618.zip|sj8pro_mod-rigacci.org_v1.8_20220618.zip}}**
 This is a breif list of customizations, see the README.txt contained into the archive for more details:
@@ Line 23: / Line 25: @@
   * Increased **bitrates**, as per other 4K action cameras. Particular attention to default settings and 1920x1080 mode.
   * Increased **keyframes** rates (reducing GOP-N): one keyframe every 1/4 second instead of 1 per second.
-  * **YUV color profiles**: all the three profiles **Default**, **SJCAM - Vivid** and **Flat** are made equals and neutral; multiplier is 1 and offset is zero for all the three Y, U and V components (shoul be actually Y, Cb and Cr when treating digital signals).
+  * **YUV color profiles**: all the three profiles **Default**, **SJCAM - Vivid** and **Flat** are made equals and neutral; multiplier is 1 and offset is zero for all the three Y, U and V components (shoul be actually Y, Cb and Cr when treating digital signals). This is because in my opinion the original Vivid is **too much saturated** and the FLAT is **too much washed out**, plus the management of the color profiles has some bugs and it is best to avoid fidding with them.
-  * Fixed **exposition** profiles: **Center**, **Spot** and **Average**.
+  * Fixed **exposition** profiles: **Center**, **Spot** and **Average** (Spot and Average are swapped into the original firmware!).
   * Changed **gamma curves**: added some brightness to shadows with an overall gamma coefficient of 1.10 and removed a slight red casting when using Auto White Balance in early hours of sunny days. All the gamma tables for video modes are the same, for photo modes we leaved a linear gamma (1.0) for R, G and B.
   * Change **chroma curves** to reduce banding in blue sky and to attenuate over-saturated colors.