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Upgrade indexdb to v3 multi output #370

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34ecac3
Upgrade sentinel-2/indexdb evalscripts to V3 multi-output with SCL cl…
azlinszkysinergise Jun 18, 2026
54dc38f
Add user-configurable parameters (minColorValue/maxColorValue) to sen…
azlinszkysinergise Jun 18, 2026
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83 changes: 63 additions & 20 deletions sentinel-2/indexdb/id_1.js
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Original file line number Diff line number Diff line change
Expand Up @@ -6,23 +6,66 @@
// URL https://www.indexdatabase.de/db/si-single.php?sensor_id=96&rsindex_id=1
//

let index = B11 / B12;
let min = 0.059;
let max = 17.133;

// colorBlend will return a color when the index is between min and max and white when it is less than min.
// To see black when it is more than max, uncomment the last line of colorBlend.
// The min/max values were computed automatically and may be poorly specified, feel free to change them to tweak the displayed range.

let underflow_color = [1, 1, 1];
let low_color = [208/255, 88/255, 126/255];
let high_color = [241/255, 234/255, 200/255];
let overflow_color = [0, 0, 0];

return colorBlend(index, [min, min, max],
[
underflow_color,
low_color,
high_color,
//overflow_color // uncomment to see overflows
]);
// Set USE_SCL_CLOUD_MASKING to false to disable cloud/shadow/water masking
var USE_SCL_CLOUD_MASKING = true;

function setup() {
return {
input: ["B11", "B12", "SCL", "dataMask"],
output: [
{ id: "default", bands: 4 },
{ id: "index", bands: 1, sampleType: "FLOAT32" },
{ id: "eobrowserStats", bands: 1, sampleType: "FLOAT32" },
{ id: "dataMask", bands: 1 }
]
};

}

// USER-CONFIGURABLE PARAMETERS
// Adjust these values to rescale the color palette visualization:
var minColorValue = 0.059; // Values below this appear as white (underflow)
var maxColorValue = 17.133; // Values above this appear as black (overflow)

const cloud_palette = {
0: [0, 0, 0], // No Data (Missing data) - black
1: [1, 0, 0.016], // Saturated or defective pixel - red
2: [0.525, 0.525, 0.525], // Topographic casted shadows - very dark grey
3: [0.467, 0.298, 0.043], // Cloud shadows - dark brown
6: [0, 0, 1], // Water (dark and bright) - blue
7: [0.506, 0.506, 0.506], // Unclassified - dark grey
8: [0.753, 0.753, 0.753], // Cloud medium probability - grey
9: [0.949, 0.949, 0.949], // Cloud high probability - white
10: [0.733, 0.773, 0.925], // Thin cirrus - very bright blue
11: [0.325, 1, 0.980], // Snow or ice - very bright pink
};

function evaluatePixel(sample) { let index = sample.B11 / sample.B12;
// colorBlend will return a color when the index is between minColorValue and maxColorValue and white when it is less than minColorValue.
// To see black when it is more than maxColorValue, uncomment the last line of colorBlend.
// The minColorValue/maxColorValue values were computed automatically and may be poorly specified, feel free to change them to tweak the displayed range.

let underflow_color = [1, 1, 1];
let low_color = [208/255, 88/255, 126/255];
let high_color = [241/255, 234/255, 200/255];
let overflow_color = [0, 0, 0];

let imgVals = colorBlend(index, [minColorValue, minColorValue, maxColorValue],
[
underflow_color,
low_color,
high_color,
//overflow_color // uncomment to see overflows
]);
let is_clouds = USE_SCL_CLOUD_MASKING && Object.keys(cloud_palette).includes(sample.SCL.toString());
if (is_clouds) {
imgVals = cloud_palette[sample.SCL];
}
return {
default: imgVals.concat(sample.dataMask),
index: [is_clouds ? NaN : index],
eobrowserStats: [is_clouds ? NaN : index],
dataMask: [sample.dataMask]
};
}

97 changes: 71 additions & 26 deletions sentinel-2/indexdb/id_104.js
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Original file line number Diff line number Diff line change
Expand Up @@ -7,29 +7,74 @@
//

// Initialize parameters
let a = 0.752;

let index = B08 - a * B04;
let min = -0.244;
let max = 0.344;
let zero = 0.0;

// colorBlend will return a color when the index is between min and max and white when it is less than min.
// To see black when it is more than max, uncomment the last line of colorBlend.
// The min/max values were computed automatically and may be poorly specified, feel free to change them to tweak the displayed range.
// This index crosses zero, so a diverging color map is used. To tweak the value of the break in the color map, change the variable 'zero'.

let underflow_color = [1, 1, 1];
let low_color = [208/255, 88/255, 126/255];
let high_color = [241/255, 234/255, 200/255];
let zero_color = [0, 147/255, 146/255];
let overflow_color = [0, 0, 0];

return colorBlend(index, [min, min, zero, max],
[
underflow_color,
low_color,
zero_color, // divergent step at zero
high_color,
//overflow_color // uncomment to see overflows
]);

// Set USE_SCL_CLOUD_MASKING to false to disable cloud/shadow/water masking
var USE_SCL_CLOUD_MASKING = true;

function setup() {
return {
input: ["B04", "B08", "SCL", "dataMask"],
output: [
{ id: "default", bands: 4 },
{ id: "index", bands: 1, sampleType: "FLOAT32" },
{ id: "eobrowserStats", bands: 1, sampleType: "FLOAT32" },
{ id: "dataMask", bands: 1 }
]
};

}

// USER-CONFIGURABLE PARAMETERS
// Adjust these values to rescale the color palette visualization:
var minColorValue = -0.244; // Values below this appear as white (underflow)
var maxColorValue = 0.344; // Values above this appear as black (overflow)

const cloud_palette = {
0: [0, 0, 0], // No Data (Missing data) - black
1: [1, 0, 0.016], // Saturated or defective pixel - red
2: [0.525, 0.525, 0.525], // Topographic casted shadows - very dark grey
3: [0.467, 0.298, 0.043], // Cloud shadows - dark brown
6: [0, 0, 1], // Water (dark and bright) - blue
7: [0.506, 0.506, 0.506], // Unclassified - dark grey
8: [0.753, 0.753, 0.753], // Cloud medium probability - grey
9: [0.949, 0.949, 0.949], // Cloud high probability - white
10: [0.733, 0.773, 0.925], // Thin cirrus - very bright blue
11: [0.325, 1, 0.980], // Snow or ice - very bright pink
};

function evaluatePixel(sample) { let a = 0.752;

let index = sample.B08 - a * sample.B04;
let zero = 0.0;

// colorBlend will return a color when the index is between minColorValue and maxColorValue and white when it is less than minColorValue.
// To see black when it is more than maxColorValue, uncomment the last line of colorBlend.
// The minColorValue/maxColorValue values were computed automatically and may be poorly specified, feel free to change them to tweak the displayed range.
// This index crosses zero, so a diverging color map is used. To tweak the value of the break in the color map, change the variable 'zero'.

let underflow_color = [1, 1, 1];
let low_color = [208/255, 88/255, 126/255];
let high_color = [241/255, 234/255, 200/255];
let zero_color = [0, 147/255, 146/255];
let overflow_color = [0, 0, 0];

let imgVals = colorBlend(index, [minColorValue, minColorValue, zero, maxColorValue],
[
underflow_color,
low_color,
zero_color, // divergent step at zero
high_color,
//overflow_color // uncomment to see overflows
]);
let is_clouds = USE_SCL_CLOUD_MASKING && Object.keys(cloud_palette).includes(sample.SCL.toString());
if (is_clouds) {
imgVals = cloud_palette[sample.SCL];
}
return {
default: imgVals.concat(sample.dataMask),
index: [is_clouds ? NaN : index],
eobrowserStats: [is_clouds ? NaN : index],
dataMask: [sample.dataMask]
};
}

92 changes: 68 additions & 24 deletions sentinel-2/indexdb/id_109.js
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Original file line number Diff line number Diff line change
Expand Up @@ -6,27 +6,71 @@
// URL https://www.indexdatabase.de/db/si-single.php?sensor_id=96&rsindex_id=109
//

let index = (B08 - B05) / (B08 + B04);
let min = -2.77;
let max = 0.736;
let zero = 0.0;

// colorBlend will return a color when the index is between min and max and white when it is less than min.
// To see black when it is more than max, uncomment the last line of colorBlend.
// The min/max values were computed automatically and may be poorly specified, feel free to change them to tweak the displayed range.
// This index crosses zero, so a diverging color map is used. To tweak the value of the break in the color map, change the variable 'zero'.

let underflow_color = [1, 1, 1];
let low_color = [208/255, 88/255, 126/255];
let high_color = [241/255, 234/255, 200/255];
let zero_color = [0, 147/255, 146/255];
let overflow_color = [0, 0, 0];

return colorBlend(index, [min, min, zero, max],
[
underflow_color,
low_color,
zero_color, // divergent step at zero
high_color,
//overflow_color // uncomment to see overflows
]);
// Set USE_SCL_CLOUD_MASKING to false to disable cloud/shadow/water masking
var USE_SCL_CLOUD_MASKING = true;

function setup() {
return {
input: ["B04", "B05", "B08", "SCL", "dataMask"],
output: [
{ id: "default", bands: 4 },
{ id: "index", bands: 1, sampleType: "FLOAT32" },
{ id: "eobrowserStats", bands: 1, sampleType: "FLOAT32" },
{ id: "dataMask", bands: 1 }
]
};

}

// USER-CONFIGURABLE PARAMETERS
// Adjust these values to rescale the color palette visualization:
var minColorValue = -2.77; // Values below this appear as white (underflow)
var maxColorValue = 0.736; // Values above this appear as black (overflow)

const cloud_palette = {
0: [0, 0, 0], // No Data (Missing data) - black
1: [1, 0, 0.016], // Saturated or defective pixel - red
2: [0.525, 0.525, 0.525], // Topographic casted shadows - very dark grey
3: [0.467, 0.298, 0.043], // Cloud shadows - dark brown
6: [0, 0, 1], // Water (dark and bright) - blue
7: [0.506, 0.506, 0.506], // Unclassified - dark grey
8: [0.753, 0.753, 0.753], // Cloud medium probability - grey
9: [0.949, 0.949, 0.949], // Cloud high probability - white
10: [0.733, 0.773, 0.925], // Thin cirrus - very bright blue
11: [0.325, 1, 0.980], // Snow or ice - very bright pink
};

function evaluatePixel(sample) { let index = (sample.B08 - sample.B05) / (sample.B08 + sample.B04);
let zero = 0.0;

// colorBlend will return a color when the index is between minColorValue and maxColorValue and white when it is less than minColorValue.
// To see black when it is more than maxColorValue, uncomment the last line of colorBlend.
// The minColorValue/maxColorValue values were computed automatically and may be poorly specified, feel free to change them to tweak the displayed range.
// This index crosses zero, so a diverging color map is used. To tweak the value of the break in the color map, change the variable 'zero'.

let underflow_color = [1, 1, 1];
let low_color = [208/255, 88/255, 126/255];
let high_color = [241/255, 234/255, 200/255];
let zero_color = [0, 147/255, 146/255];
let overflow_color = [0, 0, 0];

let imgVals = colorBlend(index, [minColorValue, minColorValue, zero, maxColorValue],
[
underflow_color,
low_color,
zero_color, // divergent step at zero
high_color,
//overflow_color // uncomment to see overflows
]);
let is_clouds = USE_SCL_CLOUD_MASKING && Object.keys(cloud_palette).includes(sample.SCL.toString());
if (is_clouds) {
imgVals = cloud_palette[sample.SCL];
}
return {
default: imgVals.concat(sample.dataMask),
index: [is_clouds ? NaN : index],
eobrowserStats: [is_clouds ? NaN : index],
dataMask: [sample.dataMask]
};
}

92 changes: 68 additions & 24 deletions sentinel-2/indexdb/id_11.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -6,27 +6,71 @@
// URL https://www.indexdatabase.de/db/si-single.php?sensor_id=96&rsindex_id=11
//

let index = (B04 - B02) / B04;
let min = -16.339;
let max = 0.942;
let zero = 0.0;

// colorBlend will return a color when the index is between min and max and white when it is less than min.
// To see black when it is more than max, uncomment the last line of colorBlend.
// The min/max values were computed automatically and may be poorly specified, feel free to change them to tweak the displayed range.
// This index crosses zero, so a diverging color map is used. To tweak the value of the break in the color map, change the variable 'zero'.

let underflow_color = [1, 1, 1];
let low_color = [208/255, 88/255, 126/255];
let high_color = [241/255, 234/255, 200/255];
let zero_color = [0, 147/255, 146/255];
let overflow_color = [0, 0, 0];

return colorBlend(index, [min, min, zero, max],
[
underflow_color,
low_color,
zero_color, // divergent step at zero
high_color,
//overflow_color // uncomment to see overflows
]);
// Set USE_SCL_CLOUD_MASKING to false to disable cloud/shadow/water masking
var USE_SCL_CLOUD_MASKING = true;

function setup() {
return {
input: ["B02", "B04", "SCL", "dataMask"],
output: [
{ id: "default", bands: 4 },
{ id: "index", bands: 1, sampleType: "FLOAT32" },
{ id: "eobrowserStats", bands: 1, sampleType: "FLOAT32" },
{ id: "dataMask", bands: 1 }
]
};

}

// USER-CONFIGURABLE PARAMETERS
// Adjust these values to rescale the color palette visualization:
var minColorValue = -16.339; // Values below this appear as white (underflow)
var maxColorValue = 0.942; // Values above this appear as black (overflow)

const cloud_palette = {
0: [0, 0, 0], // No Data (Missing data) - black
1: [1, 0, 0.016], // Saturated or defective pixel - red
2: [0.525, 0.525, 0.525], // Topographic casted shadows - very dark grey
3: [0.467, 0.298, 0.043], // Cloud shadows - dark brown
6: [0, 0, 1], // Water (dark and bright) - blue
7: [0.506, 0.506, 0.506], // Unclassified - dark grey
8: [0.753, 0.753, 0.753], // Cloud medium probability - grey
9: [0.949, 0.949, 0.949], // Cloud high probability - white
10: [0.733, 0.773, 0.925], // Thin cirrus - very bright blue
11: [0.325, 1, 0.980], // Snow or ice - very bright pink
};

function evaluatePixel(sample) { let index = (sample.B04 - sample.B02) / sample.B04;
let zero = 0.0;

// colorBlend will return a color when the index is between minColorValue and maxColorValue and white when it is less than minColorValue.
// To see black when it is more than maxColorValue, uncomment the last line of colorBlend.
// The minColorValue/maxColorValue values were computed automatically and may be poorly specified, feel free to change them to tweak the displayed range.
// This index crosses zero, so a diverging color map is used. To tweak the value of the break in the color map, change the variable 'zero'.

let underflow_color = [1, 1, 1];
let low_color = [208/255, 88/255, 126/255];
let high_color = [241/255, 234/255, 200/255];
let zero_color = [0, 147/255, 146/255];
let overflow_color = [0, 0, 0];

let imgVals = colorBlend(index, [minColorValue, minColorValue, zero, maxColorValue],
[
underflow_color,
low_color,
zero_color, // divergent step at zero
high_color,
//overflow_color // uncomment to see overflows
]);
let is_clouds = USE_SCL_CLOUD_MASKING && Object.keys(cloud_palette).includes(sample.SCL.toString());
if (is_clouds) {
imgVals = cloud_palette[sample.SCL];
}
return {
default: imgVals.concat(sample.dataMask),
index: [is_clouds ? NaN : index],
eobrowserStats: [is_clouds ? NaN : index],
dataMask: [sample.dataMask]
};
}

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