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src: wrap operations on grid in case its null

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This commit is contained in:
Artur Tamborski 2021-01-24 12:51:13 +01:00
parent 638594aab4
commit 67da4b217c
3 changed files with 16 additions and 5 deletions
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4
src/components/Recognizer/Recognizer.tsx
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@ -157,8 +157,8 @@ export default class Recognizer extends React.Component<IRecognizerProps, IRecog
coordinates: [],
});
console.debug(this.state.cells);
console.debug(solutions);
console.log(this.state.cells);
console.log(solutions);
this.props.onRecognitionFinished({
...this.state,

11
src/helpers/findTextRegions.js
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@ -201,10 +201,17 @@ export function findTextRegions(image, maxWhiteSpace, maxFontLineWidth, minTextW
let s = foundSegments[segmentOffset + i];
let croppedData = ctx.getImageData(s.x, s.y, s.w, s.h);
let croppedCanvas = document.createElement('canvas');
let croppedContext = croppedCanvas.getContext('2d');
croppedCanvas.width = s.w;
croppedCanvas.height = s.h;
croppedCanvas.getContext('2d')?.putImageData(croppedData, 0, 0);
grid[j][indexMap[s.x]] = {data: croppedData, canvas: croppedCanvas, ...s}
if (!croppedContext) {
croppedData = croppedCanvas = null;
} else {
croppedContext.putImageData(croppedData, 0, 0);
}
grid[j][indexMap[s.x]] = {data: croppedData, canvas: croppedCanvas, ...s};
}
}

6
src/helpers/recognizeTextOnImage.ts
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@ -38,7 +38,11 @@ export async function recognizeTextOnImageGrid(grid: any[][]): Promise<any[][]>
// no parallelization for now, we can always Promise it all() later
for (let line of grid) {
for (let g of line) {
g.text = await recognize(CHAR_WORKER, g.canvas);
if (g.canvas) {
g.text = await recognize(CHAR_WORKER, g.canvas);
} else {
g.text = '?';
}
}
}