Row spanning is often useful for positioning a control that is considerably taller than its peers 對于定位比其他控件高得多的控件,行跨距通常很有用。
Column spanning is often useful for positioning a control that is considerably wider than its peers 對于定位比其他控件寬得多的控件,列跨距通常很有用。
With this method , the compressed bit - streams , which are encoded by dct - based encoding algorithm , can be processed directly to locate the character - regions in the images , just a very small amount of decoding is required so , the amount of data which want to process is smaller , the processing speed is faster and the demand of computer memory is less 文獻(xiàn)中將此模型用在以dct為編碼基礎(chǔ)壓縮數(shù)據(jù)上,效果較好。本文將其算法中的能量定義利用塊間的信息重新定義,并且采用自適應(yīng)動態(tài)閾值對原算法進(jìn)行改進(jìn)。對比實(shí)驗(yàn)結(jié)果表明,改進(jìn)的方法對圖像字符定位比原方法準(zhǔn)確率更高,漏檢情況有一定程度的降低,取得了較好的效果。