Method extract_image

src/__init__.py:4600–4628

Get image by xref. Returns a dictionary.

(self, xref)

        return rc

    def extract_image(self, xref):
        """Get image by xref. Returns a dictionary."""
        if self.is_closed or self.is_encrypted:
            raise ValueError("document closed or encrypted")

        pdf = _as_pdf_document(self)

        if not _INRANGE(xref, 1, mupdf.pdf_xref_len(pdf)-1):
            raise ValueError( MSG_BAD_XREF)

        obj = mupdf.pdf_new_indirect(pdf, xref, 0)
        subtype = mupdf.pdf_dict_get(obj, PDF_NAME('Subtype'))

        if not mupdf.pdf_name_eq(subtype, PDF_NAME('Image')):
            raise ValueError( "not an image")

        o = mupdf.pdf_dict_geta(obj, PDF_NAME('SMask'), PDF_NAME('Mask'))
        if o.m_internal:
            smask = mupdf.pdf_to_num(o)
        else:
            smask = 0

        # load the image
        img = mupdf.pdf_load_image(pdf, obj)
        rc = dict()
        _make_image_dict(img, rc)
        rc[dictkey_smask] = smask
        rc[dictkey_cs_name] = mupdf.fz_colorspace_name(img.colorspace())
        return rc

    def ez_save(
            self,