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Fix FRLG OCR error caused by small images #1405

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Merged
Mysticial merged 1 commit into from
Aug 20, 2026
Merged

Fix FRLG OCR error caused by small images #1405

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15 changes: 12 additions & 3 deletions SerialPrograms/Source/PokemonFRLG/Inference/PokemonFRLG_DigitReader.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -63,9 +63,18 @@ ImageRGB32 preprocess_for_ocr(

// Step 0: Rescale the image to match the expected height at 1080p
// so that the Gaussian blur size works across resolutions
double scale_factor = image.height() / 69;
int new_w = static_cast<int>((image.width()) * scale_factor);
int new_h = static_cast<int>((image.height()) * scale_factor);
constexpr int expected_height = 69;

double scale_factor = static_cast<double>(expected_height) / static_cast<double>(image.height());

int new_w = std::max(
1, cvRound(static_cast<int>(image.width() * scale_factor))
);

int new_h = std::max(
1, cvRound(static_cast<int>(image.height() * scale_factor))
);

cv::Mat rescaled;
cv::resize(
src, rescaled, cv::Size(new_w, new_h), 0, 0,
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