2a:null 2b:["$","title",null,{"children":"RED IPP2 LUT Contrast | Fedor Indutny | Observable"}] 30:[{"id":"8424b1962c2d05ddd59763a1e26e773ac952d59d452826fcff470528fa12cde6eddc3aca95b3cde9f5c30647402ef76ed2bdde6e5cc983647492c2ce76b5b4d3","href":"https://static.observableusercontent.com/files/8424b1962c2d05ddd59763a1e26e773ac952d59d452826fcff470528fa12cde6eddc3aca95b3cde9f5c30647402ef76ed2bdde6e5cc983647492c2ce76b5b4d3","name":"RWG_Log3G10 to REC709_BT1886 with LOW_CONTRAST and R_4_VerySoft size_33 v1@1.13.cube","type":"application/octet-stream","lastModified":1770791155600.374,"size":970804},{"id":"47f507e672553f67bb26e50a1c5a1eb9bf6d3a85a671887b750427b9faa87dec58b5f3f21716e9e2b5f0121cf9c39a41007bda5e9037f358a4c9f01f4d52abf9","href":"https://static.observableusercontent.com/files/47f507e672553f67bb26e50a1c5a1eb9bf6d3a85a671887b750427b9faa87dec58b5f3f21716e9e2b5f0121cf9c39a41007bda5e9037f358a4c9f01f4d52abf9","name":"RWG_Log3G10 to REC709_BT1886 with LOW_CONTRAST and R_2_Medium size_33 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v1@1.13.cube","type":"application/octet-stream","lastModified":1770791155686.846,"size":970799},{"id":"568966a4b7fc4dac699504608ade4daa79570026ccd02d601e40e18e8467fd54b0c5602cea129370487af5a366ff8abac53d8c1923cf5ce87c48450e4a118d50","href":"https://static.observableusercontent.com/files/568966a4b7fc4dac699504608ade4daa79570026ccd02d601e40e18e8467fd54b0c5602cea129370487af5a366ff8abac53d8c1923cf5ce87c48450e4a118d50","name":"RWG_Log3G10 to REC709_BT1886 with NO_CONTRAST and R_3_Soft size_33 v1@1.13.cube","type":"application/octet-stream","lastModified":1770791155701.74,"size":970787},{"id":"df79372e07f267563f0080c3e7e9ab846cd8590fedaec998b47558f770857652de0f39507c37f4272957ec4f7721ff3b3a1ca34c0e3ecad08fca0346e15e231d","href":"https://static.observableusercontent.com/files/df79372e07f267563f0080c3e7e9ab846cd8590fedaec998b47558f770857652de0f39507c37f4272957ec4f7721ff3b3a1ca34c0e3ecad08fca0346e15e231d","name":"RWG_Log3G10 to REC709_BT1886 with HIGH_CONTRAST and R_1_Hard size_33 v1@1.13.cube","type":"application/octet-stream","lastModified":1770791155688.166,"size":970793}] 2e:{"id":"83c5414587398888","slug":"red-ipp2-lut-contrast","title":"RED IPP2 LUT Contrast","thumbnail":"2e09115581c0a4244a21b373a73e5aece1ac8800005199d89e3db809bbc2bcb6","access_level":"public","create_time":"$D2026-02-10T00:40:18.898Z","update_time":"$D2026-02-13T20:19:21.608Z","view_time":null,"first_public_time":"$D2026-02-10T20:09:46.022Z","fork":false,"stars":0,"starred":false,"owner":{"type":"team","id":"45d16fa014230070","login":"indutny","name":"Fedor Indutny","avatar_url":"https://avatars-next.observableusercontent.com/f790db7ff83b431795ea6c50023d688d196b79183c11c2b18432110463f6d4a3","tier":"starter_2024"},"version":1383,"publish_version":null,"role":null,"authored":false,"authors":[{"type":"individual","id":"d26938fddbf9d7bf","login":"indutny","name":"Fedor Indutny","avatar_url":"https://avatars-next.observableusercontent.com/f790db7ff83b431795ea6c50023d688d196b79183c11c2b18432110463f6d4a3","tier":null}],"members":[{"type":"team","id":"45d16fa014230070","login":"indutny","name":"Fedor Indutny","avatar_url":"https://avatars-next.observableusercontent.com/f790db7ff83b431795ea6c50023d688d196b79183c11c2b18432110463f6d4a3","tier":"starter_2024","role":"editor"},{"type":"individual","id":"d26938fddbf9d7bf","login":"indutny","name":"Fedor Indutny","avatar_url":"https://avatars-next.observableusercontent.com/f790db7ff83b431795ea6c50023d688d196b79183c11c2b18432110463f6d4a3","tier":null,"role":"editor"}],"comments":[],"custom_thumbnail":false,"trashed":false,"subscribed":null,"forks":0,"collection":null,"type":"notebook","body":{"title":"RED IPP2 LUT Contrast","cells":[{"id":0,"value":"# RED IPP2 LUT Contrast","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined"},{"id":1204,"value":"Here we analyze [IPP2 LUTs](https://www.red.com/download/ipp2-output-presets) provided by RED to see what different rolloff and contrast curves mean for the logarithmic data in the original video.","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined"},{"id":819,"value":"## Unadjusted Curves\n\n- Source: `log3g10`\n- Destination: `log3g10`","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined"},{"id":704,"value":"{\n const fx = contrast => FX.get(contrast);\n const fy = contrast => FY.get(contrast);\n \n return Plot.plot({\n width,\n height: width,\n padding: 0.05,\n ...AXES,\n color: {\n tickFormat: x => `${x} Rolloff`,\n legend: true,\n },\n fx: { axis: null },\n fy: { axis: null },\n marks: [\n ...STOP_MARKS,\n Plot.line([\n {\n x: log3G10(0),\n y: log3G10(0),\n }, {\n x: log3G10(1),\n y: log3G10(1),\n }\n ], { x: \"x\", y: \"y\", strokeOpacity: 0.1, strokeDasharray: '2' }),\n Plot.lineY(curves, {\n x: \"x\",\n y: \"y\",\n fx: d => fx(d.contrast),\n fy: d => fy(d.contrast),\n curve: 'linear',\n stroke: \"rolloff\",\n }),\n Plot.frame(),\n Plot.text(Array.from(FX.keys()), {\n fx,\n fy,\n frameAnchor: \"top-left\",\n dx: 6,\n dy: 6,\n text: x => `${x} CONTRAST`,\n stroke: 'white',\n fill: 'black',\n }),\n ]\n })\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":823,"value":"## Rolloff-adjusted Curves\n\nBecause RED has provided us with \"NO CONTRAST\" LUT - we could use linear interpolation to approximately invert it and get just the contrast curve from each respective LUT.","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined"},{"id":994,"value":"{\n const fx = contrast => FX.get(contrast);\n const fy = contrast => FY.get(contrast);\n \n return Plot.plot({\n aspectRatio: 1,\n padding: 0.05,\n y: {\n ...AXES.y,\n ticks: AXES.x.ticks,\n domain: [0, 1],\n },\n x: AXES.x,\n color: {\n domain: ['HIGH', 'MEDIUM', 'LOW', 'NO'],\n legend: true,\n tickFormat: d => `${d} CONTRAST`,\n },\n fx: { axis: null },\n fy: { axis: null },\n marks: [\n ...STOP_MARKS,\n Plot.line([\n {\n x: 0,\n y: 0,\n }, {\n x: 1,\n y: 1,\n }\n ], { x: \"x\", y: \"y\", strokeOpacity: 0.1, strokeDasharray: '2' }),\n Plot.lineY(rolloffAdjustedCurves, {\n x: \"x\",\n y: \"y\",\n stroke: \"contrast\",\n }),\n Plot.frame(),\n ],\n })\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":826,"value":"---","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined"},{"id":1211,"value":"### Calculation Notes\n\nTake all LUT files and parse contrast/rolloff preset name off the file name","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined"},{"id":10,"value":"files = {\n const result = await Promise.all(luts.map(async (lut) => {\n const text = await lut.text();\n \n const contrast = lut.name.match(/(HIGH|MEDIUM|LOW|NO)_CONTRAST/)[1];\n const rolloff = lut.name.match(/(Hard|Medium|Soft|VerySoft) size/)[1];\n \n return {\n name: `${contrast}/${rolloff}`,\n contrast,\n rolloff,\n lines: text.split(/\\n/g),\n };\n }));\n result.sort((a, b) => a.name < b.name ? -1 : 1);\n return result;\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1213,"value":"Parse each LUT's content into a collection of 33x33x33 RGB points:","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined"},{"id":30,"value":"points = files.map(file => {\n return file.lines\n .map(x => x.match(/([\\d.]+)\\s+([\\d.]+)\\s+([\\d.]+)/))\n .filter(m => m)\n .map((x, i) => {\n return {\n // Tags for charts\n file: file.name,\n contrast: file.contrast,\n rolloff: file.rolloff,\n \n // Source coordinates\n rs: i % SIZE / (SIZE - 1),\n gs: Math.floor(i / SIZE) % SIZE / (SIZE - 1),\n bs: Math.floor(i / SIZE / SIZE) % SIZE / (SIZE - 1),\n \n // Destination coordinates\n r: parseFloat(x[1]),\n g: parseFloat(x[2]),\n b: parseFloat(x[3]),\n };\n });\n});","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1220,"value":"We are interested only in the contrast changes applied by each LUT. Read only diagonal points to get monochrome 1D mapping:","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined"},{"id":63,"value":"gray = points.map(file => {\n return file.filter(({ rs, gs, bs }) => {\n return rs === gs && gs === bs;\n });\n});","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1223,"value":"LUTs convert `log3g10` points into `Rec. 709 BT.1886`. Convert the resultant points back to `log3g10` so that both x- and y- axii have equivalent scales:","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined"},{"id":130,"value":"curves = gray.flat().map(({ rs, gs, bs, r, g, b, file, contrast, rolloff }) => {\n // rs is in log3g10\n // r is in Rec709 BT1886\n return {\n file,\n contrast,\n rolloff,\n x: (rs + gs + bs) / 3,\n\n // RED LUTs produce Rec 709 BT 1886 values.\n // 1. Remove gamma changes\n // 2. Re-apply log3g10 to use the same scale on both axii\n y: log3G10(bt1886Inverse((r + g + b) / 3)),\n };\n})","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1226,"value":"---","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined"},{"id":1228,"value":"Filter just the rolloff (\"NO CONTRAST\") curves to cancel them out from the rest of LUTs:","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined"},{"id":832,"value":"rolloffCurves = d3.group(curves.filter(x => x.contrast === 'NO'), x => x.rolloff)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1230,"value":"Invert a rolloff LUT and apply it after each LUT to get just the contrast curve:","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined"},{"id":988,"value":"rolloffAdjustedCurves = curves.filter(({ contrast, rolloff }) => rolloff === 'Medium').map(({ x, y, contrast, rolloff }) => {\n const rolloffCurve = rolloffCurves.get(rolloff);\n for (let i = 0; i < rolloffCurve.length; i++) {\n const prev = rolloffCurve[i - 1] ?? { x: 0, y: 0 };\n const next = rolloffCurve[i] ?? { x: 1, y: 1 };\n if (!(prev.y <= y && y <= next.y)) {\n continue;\n }\n \n const pos = (y - prev.y) / (next.y - prev.y);\n y = pos * (next.x - prev.x) + prev.x;\n return { x, y, contrast };\n }\n throw new Error('Out of bounds');\n});","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1381,"value":"JSON.stringify(rolloffCurves.get('Soft').map(({ y }) => y))","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1234,"value":"---","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined"},{"id":1236,"value":"### Conversion Functions","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined"},{"id":1238,"value":"Convert `log3g10` point into linear gamma:","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined"},{"id":144,"value":"// Source https://docs.red.com/955-0187/PDF/915-0187%20Rev-C%20%20%20RED%20OPS%2C%20White%20Paper%20on%20REDWideGamutRGB%20and%20Log3G10.pdf\nfunction log3G10Inverse(x) {\n const a = 0.224282;\n const b = 155.975327;\n const c = 0.01;\n const g = 15.1927;\n if (x < 0.0) {\n return (x/g) - c;\n }\n const output = ((10.0 ** (x/a))-1.0) / b;\n return output - c;\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1240,"value":"Convert linear gamma to `log3g10`:","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined"},{"id":256,"value":"// Source https://docs.red.com/955-0187/PDF/915-0187%20Rev-C%20%20%20RED%20OPS%2C%20White%20Paper%20on%20REDWideGamutRGB%20and%20Log3G10.pdf\nfunction log3G10(x) {\n const a = 0.224282;\n const b = 155.975327;\n const c = 0.01;\n const g = 15.1927;\n x = x + c;\n if (x < 0.0) {\n return x*g;\n }\n const output = a*Math.log10((x*b)+1.0);\n return output;\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1247,"value":"Convert linear gamma into BT.1886 (Gamma 2.4):","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined"},{"id":150,"value":"function bt1886(x) {\n return x ** (1 / 2.4);\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1250,"value":"Convert BT.1886 into linear gamma:","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined"},{"id":286,"value":"function bt1886Inverse(x) {\n return x ** 2.4;\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1257,"value":"---","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined"},{"id":1260,"value":"### Miscellaneous","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined"},{"id":1263,"value":"LUT size:","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined"},{"id":105,"value":"SIZE = 33","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1265,"value":"Exposure stops relative to middle gray (18%):","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined"},{"id":763,"value":"STOPS = {\n const res = [];\n for (let stop = -5; stop <= 15; stop += 0.5) {\n res.push({ stop, value: log3G10(MIDDLE_GRAY * (2 ** stop)) });\n }\n return res;\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1130,"value":"FULL_STOPS = STOPS.filter(x => (x.stop % 1) === 0)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1133,"value":"HALF_STOPS = STOPS.filter(x => (x.stop % 1) !== 0)\n ","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1268,"value":"Various helper objects and functions for the charts:","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined"},{"id":848,"value":"STOP_MARKS = {\n const stop = {\n strokeDasharray: '1 1',\n strokeOpacity: d => 0.7 * (1 / 2) ** Math.abs(d.stop),\n };\n\n return [\n Plot.ruleY(FULL_STOPS, { y: 'value', ...stop }),\n Plot.ruleX(FULL_STOPS, { x: 'value', ...stop }),\n Plot.ruleY(HALF_STOPS, { y: 'value', ...stop, strokeDasharray: '1 3' }),\n Plot.ruleX(HALF_STOPS, { x: 'value', ...stop, strokeDasharray: '1 3' }),\n ]\n};","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":725,"value":"FX = new Map([['HIGH', 0], ['MEDIUM', 1], ['LOW', 0], ['NO', 1]]);","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":729,"value":"FY = new Map([['HIGH', 0], ['MEDIUM', 0], ['LOW', 1], ['NO', 1]]);","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1149,"value":"AXES = ({\n y: {\n domain: [log3G10(0), log3G10(1)],\n ticks: FULL_STOPS\n .map(x => x.value)\n .filter(x => log3G10(0) <= x && x <= log3G10(1)),\n tickFormat,\n label: 'Output Exposure',\n },\n x: {\n domain: [0, 1],\n ticks: FULL_STOPS\n .map(x => x.value)\n .filter(x => 0.13 <= x && x <= 1),\n tickFormat,\n label: 'Input Exposure',\n }\n})","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1161,"value":"function tickFormat(x) {\n const stop = Math.round(Math.log2(log3G10Inverse(x) / MIDDLE_GRAY));\n if (stop > 0) {\n return `+${stop}`;\n }\n if (stop === 0) {\n return '0';\n }\n return `${stop}`;\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1302,"value":"MIDDLE_GRAY = 0.18;","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":524,"value":"luts = [\n lutNoVerySoft,\n lutNoSoft,\n lutNoMed,\n lutNoHard,\n \n lutLowVerySoft,\n lutLowSoft,\n lutLowMed,\n lutLowHard,\n \n lutMedVerySoft,\n lutMedSoft,\n lutMedMed,\n lutMedHard,\n\n lutHighVerySoft,\n lutHighSoft,\n lutHighMed,\n lutHighHard,\n]","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1307,"value":"lutMedSoft = FileAttachment(\"RWG_Log3G10 to REC709_BT1886 with MEDIUM_CONTRAST and R_3_Soft size_33 v1@2.13.cube\")","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1308,"value":"lutMedMed = FileAttachment(\"RWG_Log3G10 to REC709_BT1886 with MEDIUM_CONTRAST and R_2_Medium size_33 v1@1.13.cube\")","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1309,"value":"lutHighHard = FileAttachment(\"RWG_Log3G10 to REC709_BT1886 with HIGH_CONTRAST and R_1_Hard size_33 v1@1.13.cube\")","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1310,"value":"lutHighMed = FileAttachment(\"RWG_Log3G10 to REC709_BT1886 with HIGH_CONTRAST and R_2_Medium size_33 v1@1.13.cube\")","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1311,"value":"lutNoVerySoft = FileAttachment(\"RWG_Log3G10 to REC709_BT1886 with NO_CONTRAST and R_4_VerySoft size_33 v1@1.13.cube\")","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1312,"value":"lutLowSoft = FileAttachment(\"RWG_Log3G10 to REC709_BT1886 with LOW_CONTRAST and R_3_Soft size_33 v1@1.13.cube\")","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1313,"value":"lutNoSoft = FileAttachment(\"RWG_Log3G10 to REC709_BT1886 with NO_CONTRAST and R_3_Soft size_33 v1@1.13.cube\")","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1314,"value":"lutMedVerySoft = FileAttachment(\"RWG_Log3G10 to REC709_BT1886 with MEDIUM_CONTRAST and R_4_VerySoft size_33 v1@1.13.cube\")","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1315,"value":"lutNoMed = FileAttachment(\"RWG_Log3G10 to REC709_BT1886 with NO_CONTRAST and R_2_Medium size_33 v1@1.13.cube\")","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1316,"value":"lutMedHard = FileAttachment(\"RWG_Log3G10 to REC709_BT1886 with MEDIUM_CONTRAST and R_1_Hard size_33 v1@1.13.cube\")","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1317,"value":"lutHighVerySoft = FileAttachment(\"RWG_Log3G10 to REC709_BT1886 with HIGH_CONTRAST and R_4_VerySoft size_33 v1@1.13.cube\")","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1318,"value":"lutLowMed = FileAttachment(\"RWG_Log3G10 to REC709_BT1886 with LOW_CONTRAST and R_2_Medium size_33 v1@1.13.cube\")","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1319,"value":"lutHighSoft = FileAttachment(\"RWG_Log3G10 to REC709_BT1886 with HIGH_CONTRAST and R_3_Soft size_33 v1@1.13.cube\")","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1320,"value":"lutLowVerySoft = FileAttachment(\"RWG_Log3G10 to REC709_BT1886 with LOW_CONTRAST and R_4_VerySoft size_33 v1@1.13.cube\")","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1321,"value":"lutLowHard = FileAttachment(\"RWG_Log3G10 to REC709_BT1886 with LOW_CONTRAST and R_1_Hard size_33 v1@1.13.cube\")","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"},{"id":1322,"value":"lutNoHard = FileAttachment(\"RWG_Log3G10 to REC709_BT1886 with NO_CONTRAST and R_1_Hard size_33 v1@1.13.cube\")","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined"}],"files":"$W30","stdlib":"1","titling":"auto"}} 2f:"$2e:body"