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Fix "Coordinate lower is less than upper" error with MinerU (#13483)

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### What problem does this PR solve?

Fixes #6004 #7142 #11959

Unlike #9207 we actually normalize the coordinates here

### Type of change

- [X] Bug Fix (non-breaking change which fixes an issue)
This commit is contained in:
Alexander Vostres
2026-03-10 09:02:01 +02:00
committed by GitHub
parent aaf900cf16
commit 9ba43ae4ee
1 changed files with 18 additions and 0 deletions
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18
deepdoc/parser/mineru_parser.py
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@ -340,6 +340,11 @@ class MinerUParser(RAGFlowPdfParser):
pn = [bx["page_idx"] + 1]
positions = bx.get("bbox", (0, 0, 0, 0))
x0, top, x1, bott = positions
# Normalize flipped coordinates (MinerU may report inverted bbox for flipped images)
if x0 > x1:
x0, x1 = x1, x0
if top > bott:
top, bott = bott, top
if hasattr(self, "page_images") and self.page_images and len(self.page_images) > bx["page_idx"]:
page_width, page_height = self.page_images[bx["page_idx"]].size
@ -429,6 +434,12 @@ class MinerUParser(RAGFlowPdfParser):
img0 = self.page_images[pns[0]]
x0, y0, x1, y1 = int(left), int(top), int(right), int(min(bottom, img0.size[1]))
if x0 > x1:
x0, x1 = x1, x0
if y0 > y1:
y0, y1 = y1, y0
if x1 <= x0 or y1 <= y0:
continue
crop0 = img0.crop((x0, y0, x1, y1))
imgs.append(crop0)
if 0 < ii < len(poss) - 1:
@ -442,6 +453,13 @@ class MinerUParser(RAGFlowPdfParser):
continue
page = self.page_images[pn]
x0, y0, x1, y1 = int(left), 0, int(right), int(min(bottom, page.size[1]))
if x0 > x1:
x0, x1 = x1, x0
if y0 > y1:
y0, y1 = y1, y0
if x1 <= x0 or y1 <= y0:
bottom -= page.size[1]
continue
cimgp = page.crop((x0, y0, x1, y1))
imgs.append(cimgp)
if 0 < ii < len(poss) - 1: