masking

Keras using Tensorflow backend— masking on loss function

£可爱£侵袭症+ 提交于 2019-11-30 03:07:59
I am trying to implement a sequence-to-sequence task using LSTM by Keras with Tensorflow backend. The inputs are English sentences with variable lengths. To construct a dataset with 2-D shape [batch_number, max_sentence_length], I add EOF at the end of line and pad each sentence with enough placeholders, e.g. "#". And then each character in sentence is transformed to one-hot vector, now the dataset has 3-D shape [batch_number, max_sentence_length, character_number]. After LSTM encoder and decoder layers, softmax cross entropy between output and target is computed. To eliminate the padding

Alpha masking in c# System.Drawing?

。_饼干妹妹 提交于 2019-11-29 22:25:43
I'm trying to draw an image, with a source Bitmap and an alpha mask Bitmap , using the System.Drawing.Graphics object. At the moment I loop X and Y and use GetPixel and SetPixel to write the source color and mask alpha to a third Bitmap , and then render that. However this is very inefficient and I am wondering if there is an faster way to achieve this? The effect I'm after looks like this: The grid pattern represents transparency; you probably knew that. Yes, the faster way to do this is to use Bitmap.LockBits and use pointer arithmetic to retrieve the values instead of GetPixel and SetPixel

mask all digits except first 6 and last 4 digits of a string( length varies )

限于喜欢 提交于 2019-11-29 16:45:48
问题 I have a card number as a string, for example: string ClsCommon.str_CardNumbe r = "3456123434561234"; The length of this card number can vary from 16 to 19 digits, depending on the requirement. My requirement is that I have to show the first six digits and the last 4 digits of a card number and mask the other characters in between with the character 'X'. I have tried using subString and implemented it separately for 16,17,18,19 digits.. I split string(ClsCommon.str_CardNumber) to 5 strings

tensorflow creating mask of varied lengths

喜你入骨 提交于 2019-11-29 02:54:12
问题 I have a tensor of lengths in tensorflow, let's say it looks like this: [4, 3, 5, 2] I wish to create a mask of 1s and 0s whose number of 1s correspond to the entries to this tensor, padded by 0s to a total length of 8. I.e. I want to create this tensor: [[1,1,1,1,0,0,0,0], [1,1,1,0,0,0,0,0], [1,1,1,1,1,0,0,0], [1,1,0,0,0,0,0,0] ] How might I do this? 回答1: This can be achieved using a variety of TensorFlow transformations: # Make a 4 x 8 matrix where each row contains the length repeated 8

Easiest way to mask characters in HTML(5) text input

半世苍凉 提交于 2019-11-29 02:14:31
问题 Does HTML5 have any kind of text field masking or do I still have to trap onkeydown etc.? jbabey is right--"masking" as in blocking certain illegal characters, not hiding what's typed. The best (as in simplest and most reliable) way I've found is to trap onkeyup and then just run a regex replace on the value of the textfield, removing any illegal characters. This has a few advantages: It's easy to implement (one function, two lines of code). It's reliable and covers all cases I've thought of.

Masking an image with selectable text with SVG - possible?

流过昼夜 提交于 2019-11-29 02:13:32
One neat typographic effect often seen headlines in magazines etc, is to select a really bold font and put an image inside of the text. Here's a random example of the effect: In web design, there is no way to do this with plain html/css/js. It could be done with flash or with a bitmap image but those techniques obviously have some big drawbacks. I wonder if it is possible to do this with SVG though? I have never ever used SVG, but if this is possible, it might be worth trying to wrap my head around it. For instance, would it be possible to let a javascript go through the page and look for

How to do date masking using javascript (without JQuery)?

China☆狼群 提交于 2019-11-29 00:40:32
<![CDATA[ var $ = jQuery; String locale = getUserLocale(); $(document).ready(function() { if (!isEmptyNull(locale) && locale.equals("zh_CN")) { $("input[id*='text12']").mask('9999年99月99日'); } else { $("input[id*='text12']").mask('99/99/9999'); } }); ]]> <p:calendar id="text12" styleClass="calendar" maxlength="10" pattern="# {pc_Test.dateDisplayFormat}"></p:calendar> If the locale is equal to 'zh_CN', the masking would be '9999年99月99日' . Otherwise, it would would be '99/99/9999' . When I remove the if else command, it works. But if I put the if else command inside, it doesn't work. How do I

Keras using Tensorflow backend— masking on loss function

让人想犯罪 __ 提交于 2019-11-28 22:30:37
问题 I am trying to implement a sequence-to-sequence task using LSTM by Keras with Tensorflow backend. The inputs are English sentences with variable lengths. To construct a dataset with 2-D shape [batch_number, max_sentence_length], I add EOF at the end of line and pad each sentence with enough placeholders, e.g. "#". And then each character in sentence is transformed to one-hot vector, now the dataset has 3-D shape [batch_number, max_sentence_length, character_number]. After LSTM encoder and

iOS invert mask in drawRect

天涯浪子 提交于 2019-11-28 20:24:00
With the code below, I am successfully masking part of my drawing, but it's the inverse of what I want masked. This masks the inner portion of the drawing, where I would like to mask the outer portion. Is there a simple way to invert this mask? myPath below is a UIBezierPath . CAShapeLayer *maskLayer = [[CAShapeLayer alloc] init]; CGMutablePathRef maskPath = CGPathCreateMutable(); CGPathAddPath(maskPath, nil, myPath.CGPath); [maskLayer setPath:maskPath]; CGPathRelease(maskPath); self.layer.mask = maskLayer; With even odd filling on the shape layer ( maskLayer.fillRule = kCAFillRuleEvenOdd; )

Alpha masking in c# System.Drawing?

旧巷老猫 提交于 2019-11-28 19:06:27
问题 I'm trying to draw an image, with a source Bitmap and an alpha mask Bitmap , using the System.Drawing.Graphics object. At the moment I loop X and Y and use GetPixel and SetPixel to write the source color and mask alpha to a third Bitmap , and then render that. However this is very inefficient and I am wondering if there is an faster way to achieve this? The effect I'm after looks like this: The grid pattern represents transparency; you probably knew that. 回答1: Yes, the faster way to do this