Piccap Calibration

[Mibix]

I can't seem to get the Piccap calibrated. I have tried playing the video through kodi but it never recognizes anything so I did it on my HTPC through the web and it always errors out. My PIccap app really struggles at 1280x720 and maybe does 1 FPS on my LG CX 77. I do have a Elgato HD60 X that I have calibrated successfully before but I need Piccap for TV-Led Dolby Vision content. Without the calibration colors are significantly off.

`2025-03-03T00:08:16.293Z [CALIBRATOR] (LutCalibrator.cpp:381) Using flatbuffers/protobuffers as a source
Waiting for first captured test board..
2025-03-03T00:08:16.880Z [CALIBRATOR] The YUV range is LIMITED
2025-03-03T00:08:16.880Z [CALIBRATOR] Successfully parsed image of test board no. 0. Waiting for another frame...
2025-03-03T00:08:17.697Z [CALIBRATOR] Successfully parsed image of test board no. 0. Waiting for another frame...
2025-03-03T00:08:18.516Z [CALIBRATOR] Successfully parsed image of test board no. 1. Waiting for another frame...
2025-03-03T00:08:19.298Z [CALIBRATOR] Successfully parsed image of test board no. 2. Waiting for another frame...
2025-03-03T00:08:20.086Z [CALIBRATOR] Successfully parsed image of test board no. 2. Waiting for another frame...
2025-03-03T00:08:20.847Z [CALIBRATOR] Successfully parsed image of test board no. 2. Waiting for another frame...
2025-03-03T00:08:21.627Z [CALIBRATOR] Successfully parsed final image of test board no. 2
2025-03-03T00:08:22.401Z [CALIBRATOR] Successfully parsed image of test board no. 3. Waiting for another frame...
2025-03-03T00:08:23.202Z [CALIBRATOR] Successfully parsed image of test board no. 3. Waiting for another frame...
2025-03-03T00:08:24.001Z [CALIBRATOR] Successfully parsed image of test board no. 3. Waiting for another frame...
2025-03-03T00:08:24.822Z [CALIBRATOR] Successfully parsed final image of test board no. 3
2025-03-03T00:08:25.611Z [CALIBRATOR] Successfully parsed image of test board no. 4. Waiting for another frame...
2025-03-03T00:08:26.415Z [CALIBRATOR] Successfully parsed image of test board no. 4. Waiting for another frame...
2025-03-03T00:08:27.201Z [CALIBRATOR] Successfully parsed image of test board no. 4. Waiting for another frame...
2025-03-03T00:08:28.013Z [CALIBRATOR] Successfully parsed final image of test board no. 4
2025-03-03T00:08:28.805Z [CALIBRATOR] Successfully parsed image of test board no. 5. Waiting for another frame...
2025-03-03T00:08:29.579Z [CALIBRATOR] Successfully parsed image of test board no. 5. Waiting for another frame...
2025-03-03T00:08:30.396Z [CALIBRATOR] Successfully parsed image of test board no. 5. Waiting for another frame...
2025-03-03T00:08:31.194Z [CALIBRATOR] Successfully parsed image of test board no. 6. Waiting for another frame...
2025-03-03T00:08:31.995Z [CALIBRATOR] Successfully parsed image of test board no. 6. Waiting for another frame...
2025-03-03T00:08:32.775Z [CALIBRATOR] Successfully parsed image of test board no. 6. Waiting for another frame...
2025-03-03T00:08:33.567Z [CALIBRATOR] Successfully parsed final image of test board no. 6
2025-03-03T00:08:34.369Z [CALIBRATOR] Successfully parsed image of test board no. 7. Waiting for another frame...
2025-03-03T00:08:35.180Z [CALIBRATOR] Successfully parsed image of test board no. 7. Waiting for another frame...
2025-03-03T00:08:35.993Z [CALIBRATOR] Successfully parsed image of test board no. 7. Waiting for another frame...
2025-03-03T00:08:36.798Z [CALIBRATOR] Successfully parsed final image of test board no. 7
2025-03-03T00:08:37.596Z [CALIBRATOR] Successfully parsed image of test board no. 0. Waiting for another frame...
2025-03-03T00:08:38.397Z [CALIBRATOR] Successfully parsed final image of test board no. 0
2025-03-03T00:08:40.806Z [CALIBRATOR] Successfully parsed image of test board no. 1. Waiting for another frame...
2025-03-03T00:08:41.612Z [CALIBRATOR] Successfully parsed image of test board no. 1. Waiting for another frame...
2025-03-03T00:08:42.415Z [CALIBRATOR] Successfully parsed final image of test board no. 1
2025-03-03T00:08:51.870Z [MEDIA_FOUNDATION:AUTO] Video cache: size: 5, hits: 3598, needed: 0, cleanup: 0, limit: 8
2025-03-03T00:08:52.614Z [PERFORMANCE] [USB: FPS = 59.97, decoding = 2ms, frames = 3598, invalid = 0, mode = direct], [INSTANCE0: FPS = 3.75, processed = 226], [LED0: FPS = 16.24, send = 967, processed = 967, dropped = 2533], [INSTANCE3: FPS = 3.73, processed = 225], [LED3: FPS = 53.73, send = 3239, processed = 225, dropped = 0]
2025-03-03T00:08:52.616Z [CALIBRATOR] Successfully parsed final image of test board no. 5
2025-03-03T00:08:52.616Z [CALIBRATOR] All boards are captured. Starting calibration...
2025-03-03T00:08:52.821Z [FLATBUFSERVER] Global request to pause FlatBuffersServer
2025-03-03T00:08:52.821Z [FLATBUFSERVER] (FlatBuffersServerConnection.cpp:245) Socket Closed
2025-03-03T00:08:52.821Z [MUXER0] Removed source priority 125
2025-03-03T00:08:52.821Z [MUXER3] Removed source priority 125
2025-03-03T00:08:52.821Z [MUXER0] Set visible priority to 130
2025-03-03T00:08:52.821Z [MUXER3] Set visible priority to 240
2025-03-03T00:08:52.821Z [HYPERHDR3] New priority[240], previous [125]
2025-03-03T00:08:52.821Z [COLORSPACE_CALIBRATION3] (ColorSpaceCalibration.cpp:224) setBackLightEnabled: 1
2025-03-03T00:08:52.821Z [HYPERHDR0] New priority[130], previous [125]
2025-03-03T00:08:52.821Z [COLORSPACE_CALIBRATION0] (ColorSpaceCalibration.cpp:224) setBackLightEnabled: 1
2025-03-03T00:08:52.821Z [FLATBUFSERVER] Stopped

Captured colors:
White: [255 255 255] => [224 227 224] (YUV: [210 127 127]), [225 228 225] (YUV: [211 127 127]), [226 226 224] (YUV: [210 127 128]) [source noise detected]
Red: [255 0 0] => [243 38 33] (YUV: [ 86 105 218]), [242 40 32] (YUV: [ 87 104 217]) [source noise detected]
Green: [ 0 255 0] => [ 0 0 0] (YUV: [ 16 128 128])
Blue: [ 0 0 255] => [ 0 0 0] (YUV: [ 16 128 128])
UpperRed: [192 0 0] => [182 30 24] (YUV: [ 69 110 195]), [183 31 25] (YUV: [ 70 110 195]) [source noise detected]
UpperGreen: [ 0 192 0] => [ 0 0 0] (YUV: [ 16 128 128])
UpperBlue: [ 0 0 192] => [ 0 0 0] (YUV: [ 16 128 128])
MiddleRed: [128 0 0] => [126 21 16] (YUV: [ 53 115 174]), [127 23 17] (YUV: [ 54 115 174]), [127 21 16] (YUV: [ 53 115 175]) [source noise detected]
MiddleGreen: [ 0 128 0] => [ 0 0 0] (YUV: [ 16 128 128])

MiddleBlue: [ 0 0 128] => [ 0 0 0] (YUV: [ 16 128 128])
LowRed: [ 64 0 0] => [ 63 11 7] (YUV: [ 35 121 151]), [ 62 10 6] (YUV: [ 34 121 151]) [source noise detected]
LowGreen: [ 0 64 0] => [ 0 0 0] (YUV: [ 16 128 128])
LowBlue: [ 0 0 64] => [ 0 0 0] (YUV: [ 16 128 128])
Yellow: [255 255 0] => [230 233 30] (YUV: [203 39 135]), [229 232 29] (YUV: [202 39 135]), [228 231 25] (YUV: [201 38 135]) [source noise detected]
Magenta: [255 0 255] => [236 54 253] (YUV: [108 197 200]), [235 53 252] (YUV: [107 197 200]), [235 53 254] (YUV: [107 198 200]) [source noise detected]
Cyan: [ 0 255 255] => [ 0 0 0] (YUV: [ 16 128 128])
Orange: [255 128 0] => [250 137 47] (YUV: [149 77 181]), [246 134 44] (YUV: [146 77 181]), [251 139 48] (YUV: [150 77 181]) [source noise detected]
LimeBlue: [ 0 255 128] => [ 0 0 0] (YUV: [ 16 128 128])

    Pink: [255   0 128] => [243  42 127] (YUV: [ 94 145 213]), [243  42 129] (YUV: [ 94 146 213])  [source noise detected]
 LimeRed: [128 255   0] => [135 240  18] (YUV: [189  41  91]), [137 239  18] (YUV: [189  41  92])  [source noise detected]
   Azure: [  0 128 255] => [  0   0   0] (YUV: [ 16 128 128]) 
  Violet: [128   0 255] => [117  41 254] (YUV: [ 78 214 153]), [119  40 254] (YUV: [ 78 214 154])  [source noise detected]
 WHITE_0: [  0   0   0] => [  0   0   0] (YUV: [ 16 128 128]) 
 WHITE_1: [ 16  16  16] => [  0   0   0] (YUV: [ 16 128 128]) 
 WHITE_2: [ 32  32  32] => [  0   0   0] (YUV: [ 16 128 128]) 
 WHITE_3: [ 48  48  48] => [ 52  54  51] (YUV: [ 62 127 127]), [ 54  54  54] (YUV: [ 62 128 128]), [ 54  54  51] (YUV: [ 62 127 128])  [source noise detected]
 WHITE_4: [ 64  64  64] => [ 67  69  67] (YUV: [ 75 127 127]), [ 69  69  67] (YUV: [ 75 127 128]), [ 68  71  68] (YUV: [ 76 127 127])  [source noise detected]

 WHITE_5: [ 80  80  80] => [ 84  87  84] (YUV: [ 90 127 127]) 
 WHITE_6: [ 96  96  96] => [104 104 104] (YUV: [105 128 128]), [102 104 102] (YUV: [105 127 127])  [source noise detected]
 WHITE_7: [112 112 112] => [115 117 114] (YUV: [116 127 127]), [116 118 115] (YUV: [117 127 127])  [source noise detected]
 WHITE_8: [128 128 128] => [131 133 131] (YUV: [130 127 127]), [132 135 132] (YUV: [131 127 127])  [source noise detected]
 WHITE_9: [144 144 144] => [146 149 146] (YUV: [143 127 127]), [147 150 147] (YUV: [144 127 127])  [source noise detected]
WHITE_10: [160 160 160] => [161 164 161] (YUV: [156 127 127]), [160 163 160] (YUV: [155 127 127])  [source noise detected]
WHITE_11: [176 176 176] => [176 176 174] (YUV: [167 127 128]), [174 177 174] (YUV: [167 127 127])  [source noise detected]
WHITE_12: [192 192 192] => [187 188 185] (YUV: [177 127 128]), [186 188 185] (YUV: [177 127 127])  [source noise detected]
WHITE_13: [208 208 208] => [196 199 196] (YUV: [186 127 127]), [197 197 195] (YUV: [185 127 128])  [source noise detected]
WHITE_14: [224 224 224] => [206 206 204] (YUV: [193 127 128]), [205 205 203] (YUV: [192 127 128]), [204 207 204] (YUV: [193 127 127])  [source noise detected]
WHITE_15: [240 240 240] => [213 213 211] (YUV: [199 127 128]), [214 214 212] (YUV: [200 127 128])  [source noise detected]
WHITE_16: [255 255 255] => [224 227 224] (YUV: [210 127 127]), [225 228 225] (YUV: [211 127 127]), [226 226 224] (YUV: [210 127 128])  [source noise detected]

2025-03-03T00:08:52.822Z [IMAGETOLED_MNG3] Total index number is: 15552 (memory: 15552). User sparse processing is: enabled, image size: 720 x 576, area number: 2
2025-03-03T00:08:52.822Z [CALIBRATOR] The first phase starts
2025-03-03T00:08:52.822Z [CALIBRATOR] Optimal thread count: 4
2025-03-03T00:08:52.822Z [CALIBRATOR] Number of test vertexes: 982
2025-03-03T00:08:52.822Z [IMAGETOLED_MNG0] Total index number is: 26738 (memory: 26738). User sparse processing is: enabled, image size: 720 x 576, area number: 319
2025-03-03T00:09:13.340Z [WEBSOCKET] (HyperAPI.cpp:946) log streaming activated for client ::ffff:192.168.1.39
2025-03-03T00:09:51.870Z [PERFORMANCE] [USB: FPS = 59.67, decoding = 11ms, frames = 3580, invalid = 0, mode = direct], [INSTANCE0: FPS = 59.00, processed = 3496], [LED0: FPS = 58.22, send = 3493, processed = 3493, dropped = 34], [INSTANCE3: FPS = 59.05, processed = 3499], [LED3: FPS = 109.04, send = 6461, processed = 3499, dropped = 0]
2025-03-03T00:09:51.870Z [MEDIA_FOUNDATION:AUTO] Video cache: size: 4, hits: 3580, needed: 0, cleanup: 1, limit: 8
2025-03-03T00:10:51.879Z [PERFORMANCE] [USB: FPS = 59.69, decoding = 11ms, frames = 3582, invalid = 0, mode = direct], [INSTANCE0: FPS = 58.76, processed = 3526], [LED0: FPS = 58.82, send = 3530, processed = 3530, dropped = 0], [INSTANCE3: FPS = 58.78, processed = 3527], [LED3: FPS = 108.79, send = 6528, processed = 3527, dropped = 0]
2025-03-03T00:11:51.895Z [PERFORMANCE] [USB: FPS = 59.75, decoding = 10ms, frames = 3586, invalid = 0, mode = direct], [INSTANCE0: FPS = 58.85, processed = 3532], [LED0: FPS = 58.82, send = 3529, processed = 3529, dropped = 0], [INSTANCE3: FPS = 58.90, processed = 3535], [LED3: FPS = 108.90, send = 6536, processed = 3535, dropped = 0]
2025-03-03T00:12:44.565Z [CALIBRATOR] The calibration failed. The error is too high.

Calibrated:
White: [255 255 255] => [corrected]
Red: [255 0 0] => [corrected]
Green: [ 0 255 0] => [corrected]
Blue: [ 0 0 255] => [corrected]
UpperRed: [192 0 0] => [corrected]
UpperGreen: [ 0 192 0] => [corrected]
UpperBlue: [ 0 0 192] => [corrected]
MiddleRed: [128 0 0] => [corrected]
MiddleGreen: [ 0 128 0] => [corrected]
MiddleBlue: [ 0 0 128] => [corrected]
LowRed: [ 64 0 0] => [corrected]
LowGreen: [ 0 64 0] => [corrected]
LowBlue: [ 0 0 64] => [corrected]
Yellow: [255 255 0] => [corrected]
Magenta: [255 0 255] => [corrected]
Cyan: [ 0 255 255] => [corrected]
Orange: [255 128 0] => [corrected]
LimeBlue: [ 0 255 128] => [corrected]
Pink: [255 0 128] => [corrected]
LimeRed: [128 255 0] => [corrected]
Azure: [ 0 128 255] => [corrected]
Violet: [128 0 255] => [corrected]
WHITE_0: [ 0 0 0] => [corrected]
WHITE_1: [ 16 16 16] => [corrected]
WHITE_2: [ 32 32 32] => [corrected]
WHITE_3: [ 48 48 48] => [corrected]
WHITE_4: [ 64 64 64] => [corrected]
WHITE_5: [ 80 80 80] => [corrected]
WHITE_6: [ 96 96 96] => [corrected]
WHITE_7: [112 112 112] => [corrected]
WHITE_8: [128 128 128] => [corrected]
WHITE_9: [144 144 144] => [corrected]
WHITE_10: [160 160 160] => [corrected]
WHITE_11: [176 176 176] => [corrected]
WHITE_12: [192 192 192] => [corrected]
WHITE_13: [208 208 208] => [corrected]
WHITE_14: [224 224 224] => [corrected]
WHITE_15: [240 240 240] => [corrected]
WHITE_16: [255 255 255] => [corrected]

---

                                    Detailed results

---

[ 0 0 0] =>
[ 0 0 64] =>
[ 0 0 128] =>
[ 0 0 192] =>
[ 0 0 255] =>
[ 0 64 0] =>
[ 0 64 64] =>
[ 0 64 128] =>
[ 0 64 192] =>
[ 0 64 255] =>
[ 0 128 0] =>
[ 0 128 64] =>
[ 0 128 128] =>
[ 0 128 192] =>
[ 0 128 255] =>
[ 0 192 0] =>
[ 0 192 64] =>
[ 0 192 128] =>
[ 0 192 192] =>
[ 0 192 255] =>
[ 0 255 0] =>
[ 0 255 64] =>
[ 0 255 128] =>
[ 0 255 192] =>
[ 0 255 255] =>
[ 64 0 0] =>
[ 64 0 64] =>
[ 64 0 128] =>
[ 64 0 192] =>
[ 64 0 255] =>
[ 64 64 0] =>
[ 64 64 64] =>
[ 64 64 128] =>
[ 64 64 192] =>

[ 64 64 255] =>
[ 64 128 0] =>
[ 64 128 64] =>
[ 64 128 128] =>
[ 64 128 192] =>
[ 64 128 255] =>
[ 64 192 0] =>
[ 64 192 64] =>
[ 64 192 128] =>
[ 64 192 192] =>
[ 64 192 255] =>
[ 64 255 0] =>
[ 64 255 64] =>
[ 64 255 128] =>
[ 64 255 192] =>
[ 64 255 255] =>
[128 0 0] =>
[128 0 64] =>
[128 0 128] =>
[128 0 192] =>
[128 0 255] =>
[128 64 0] =>
[128 64 64] =>
[128 64 128] =>
[128 64 192] =>
[128 64 255] =>
[128 128 0] =>
[128 128 64] =>
[128 128 128] =>
[128 128 192] =>
[128 128 255] =>
[128 192 0] =>
[128 192 64] =>
[128 192 128] =>
[128 192 192] =>
[128 192 255] =>
[128 255 0] =>
[128 255 64] =>
[128 255 128] =>
[128 255 192] =>
[128 255 255] =>
[192 0 0] =>
[192 0 64] =>
[192 0 128] =>
[192 0 192] =>
[192 0 255] =>

[192 64 0] =>
[192 64 64] =>
[192 64 128] =>
[192 64 192] =>
[192 64 255] =>
[192 128 0] =>
[192 128 64] =>
[192 128 128] =>
[192 128 192] =>
[192 128 255] =>
[192 192 0] =>
[192 192 64] =>
[192 192 128] =>
[192 192 192] =>
[192 192 255] =>
[192 255 0] =>
[192 255 64] =>
[192 255 128] =>
[192 255 192] =>
[192 255 255] =>
[255 0 0] =>
[255 0 64] =>
[255 0 128] =>
[255 0 192] =>
[255 0 255] =>
[255 64 0] =>
[255 64 64] =>
[255 64 128] =>
[255 64 192] =>
[255 64 255] =>
[255 128 0] =>
[255 128 64] =>
[255 128 128] =>
[255 128 192] =>
[255 128 255] =>
[255 192 0] =>
[255 192 64] =>
[255 192 128] =>
[255 192 192] =>
[255 192 255] =>
[255 255 0] =>
[255 255 64] =>
[255 255 128] =>
[255 255 192] =>
[255 255 255] =>
-------------------------------------------------------------------------------------------------`

The preview is also really bad

Without NV12 enabled:

[awawa-dev]

Hi probably more help you can find on openwebos discord channel. Make sure for 100% that you install latest piccap as far I know there were some fixes for nv12 and after that disconnect TV from the plug for a minute to make sure it rebooted. I didn't prepare calibration test file for Dolby Vision because I didn't find the application that is capable to encode test boards in this closed proprietary format. Using other ways won't guarantee a success and was not test by my on webos. Only low latency Dolby Vision protocol is supported as generic HDR10 variant.

[Mibix]

Piccap switches the LUTs (there are 3 modes SDR/HDR/DV on webos) but SDR mode is using the same name as the generic LUT you calibrated for the USB grabber. Each calibration overwrites the old one.

So they share the SDR mode LUT but the Piccap has its own HDR and DV profiles from my recent calibration and the USB grabber uses its own HDR and DV profiles from my previous calibration? There is only one LUT file but insides it has values for different devices for HDR and DV?

[awawa-dev]

You can find more information about webos calibration here: https://github.com/satgit62/Ultimate-HyperHDR-Ambilight-fine-tuning-experience-for-LG-webOS-with-new-LUT-calibration-

[Mibix]

You can find more information about webos calibration here: https://github.com/satgit62/Ultimate-HyperHDR-Ambilight-fine-tuning-experience-for-LG-webOS-with-new-LUT-calibration-

Oh I use the windows version of HyperHDR and have Piccap/flatbuffers for DV content and the USB Capture card for everything else. This article is interesting though. I assume on windows it has SDR/HDR/DV profiles as well and uses the same LUT for every source?

[awawa-dev]

It doesn't matter if you forward piccap to windows unit: the approach is almost identical as for HyperHDR running on the webos. Only paths for LUTs can be different but LUTs naming for SDR/HDR/dv is the same

[awawa-dev]

If you read the PR that implemented new LUT calibration, currently webos capturing is just little worse than USB grabber. Of course it must be correctly calibrated and the results may depend on the TV model. You may test it and consider dropping usb grabber.