title: Show more images in Tensorboard - Tensorflow object detection
body: <p>I am using <a href="https://github.com/tensorflow/models/tree/master/research/object_detection" rel="noreferrer">Tensorflow's object detection framework</a>. Training and evaluation jobs are going well, but in tensorboard I am only able to see 10 images for the evaluation job. Is there a way to increase this number to look at more images? I tried changing the config file:</p>
  
  <pre><code>eval_config: {
    num_examples: 1000
    max_evals: 50
  }
  
  eval_input_reader: {
    tf_record_input_reader {
      input_path: "xxx/eval.record"
    }
    label_map_path: "xxx/label_map.pbtxt"
    shuffle: false
    num_readers: 1
  }
  </code></pre>
  
  <p>I thought the <code>max_eval</code> parameter would change this but it doesn't.</p>
  
  <p>This is the command i'm running for the evaluation job:</p>
  
  <pre><code>python ../models/research/object_detection/eval.py \
      --logtostderr \
      --pipeline_config_path=xxx/ssd.config \
      --checkpoint_dir="xxx/train/" \
      --eval_dir="xxx/eval"
  </code></pre>